How to find the angle of a triangle given 3 sides and 1 right angle?

Answers

Answer 1

When the two sides and one angle of a triangle are given then we can find out the other two remaining angles by the law of sins.

Law of Sin :

In trigonometry, the law of sines, sine law, sine formula, or sine rule is an equation relating the lengths of the sides of any triangle to the sines of its angles.

According to the law of sine s

[tex]\frac{sina}{A}[/tex] = [tex]\frac{sin b}{B}[/tex]

[tex]\frac{sin90}{A}[/tex] = [tex]\frac{sin b}{B}[/tex] ( since it is given that one angle is 90 degrees)

[tex]\frac{1}{A}[/tex] =[tex]\frac{sin b }{B}[/tex]

sin b = B/A

b = [tex]sin^{-1}[/tex](B/A)    where B and A are sides of the triangle and known values.

Remaining angle c = 180- [tex]sin^{-1}[/tex](B/A)

Therefore if one angle and at least two sides are given then we can find out the remaining by the law of sin

Learn more about triangles:

https://brainly.com/question/25215131

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Related Questions

Solve for x in the picture below

Answers

Answer:

x = 16

Step-by-step explanation:

The sum of the exterior angles of a triangle = 360°

Sum the exterior angles and equate to 360

5x + 12 + 10x - 37 + 9x + 1 = 360 , that is

24x - 24 = 360 ( add 24 to both sides )

24x = 384 ( divide both sides by 24 )

x = 16

Answer:

x = 15

Step-by-step explanation:

The sum of angles in a triangle is 180deg.

Let's mark the measures of the internal angles as A, B and C.

We know that

A + B + C = 180deg

180deg - A + 180deg - B + 180deg - C = (9x + 1)deg + (5x + 12)deg + (10x - 37)deg

3*180deg - (A + B + C) = (24x - 24)deg

540deg - 180deg = (24x - 24)deg

360deg = (24x - 24)deg

360 = 24x - 24

384 = 24x

15 = x

HELP FAST giving 5 stars

Answers

Answer:

The red is 1/3 and yellow is 1/4

Step-by-step explanation:

there are 3 colors and 1 of them is red so 1/3 same goes to the yellow 4 colors and  is 1 yellow so 1/4

please help, no links, will give brainiest

Answers

Answer:

? = 20

Step-by-step explanation:

Since the figures are similar then the ratio of corresponding sides are equal, that is

[tex]\frac{12}{15}[/tex] = [tex]\frac{?}{25}[/tex] ( cross- multiply )

15 ? = 300 ( divide both sides by 15 )

? = 20

Graph the functions y=4^x+4-4 and y=4^x describe the translation in words between these two functions starting from y=4^x to y=^x+4-4.

Answers

Answer:

The two graphs are on the same place.

The translation from the first one to the second one implies a shift upwards of 4 units, and then a shift downwards of 4 units, resulting in the starting position.

Please help me with this question!

Answers

Answer:

9 plates and mugs

He could buy 9.375

but you cant buy a portion of a plate so you buy 9


Write 2 19/20as a decimal.
20
X

Answers

Answer:

2.95

Step-by-step explanation:

edge 2020

p.s. pls mark brainliest, and have a good day! :)

2. What is the value of x?

Answers

Answer:

x = 5

Step-by-step explanation:

The total degrees in a 4 sided polygon is 360°

360° = 51° + 51° + 2(28x - 11°)

56x - 22° + 51° + 51° = 360°

56x = 280°

x = 5

pls help i need to pass algebra 2 THANK U SO MUCHHHH

Answers

I think it is 96k hope this helps

Suppose 80 out of 400 cat owners surveyed said their cats have bad breath. What percent of the cat owners is this?

Answers

??? The link isn’t working for me :\

May someone please help me with this:)

Answers

Answer:

i think its 64

Step-by-step explanation:

Volume of a cylinder is V=pi(r)2h

Radius =2.
Height =4.
Pi=3.14.

V= 3.14(2)2(4).

Volume = 50 .24 cm^2

questions 13 & 14 FAST PLS ITS A TEST! WILL GIVE BRAINLIEST!

Answers

13: answer is x= —4
14: answer is x= 1/3, x= 2

What is the difference of (3/4x - 2/3) - (-5/6 + 2x) ?

-5/4x + 1/6
-5/4x - 1/6
-11/4x + 1/6
-11/4x - 1/6​

Answers

Answer:

first option is correct

look at given picture

Evaluate the expression when a = 3.

2a =

Answers

Answer:

6

Step-by-step explanation:

replace a by 3

when a=3

2(3)=6

PLEASE ANSWER!!!

A. 4x+2=70+35

B. 4x+72=180

C.180=4x+107

D. 180=109x+2

Answers

Answer:

c

Step-by-step explanation:

its c , absolutely.............

Answer:

C * 180 = 4x + 107

Step-by-step explanation:If you add all sides by each other all you would do next is add the 4x to get your 180

Supplementary angles always add up to 180 degrees. TRUE OR FALSE

Answers

Answer:

yes this is true.

Supplementary angles always add up to 180°.

Answer:

True

Supplementary angles always add up to 180°

GIVING BRAINLIEST

Study the function below and then answer the
questions that follow.
f(x)=
-x-2 x<-2 -x^2 -2=0

Answers

Answer:

Step-by-step explanation:

Answer:

B then A

Step-by-step explanation:

Domain is B, range is A.

If the rectangular screen of a 40-inch monitor is 35 inches wide, what is the height of the monitor? Round to the nearest tenth.

Answers

Answer:

19.4

Step-by-step explanation:

We can solve this question using Pythagorean theorem

40^2 = h^2 + 35^2

1600= h^2+ 1225

1600-1225= h^2

375= h^2

h= √375

h = 19.4

Hence the height is 19.4

What is the equation of the line that passes through the point (4, 6) and is parallel to the line 2y - 4x = 1?
Select one:
O A. y = - 2x - 2
O B. y = 2x + 2
O C. y = x - 2
O D. y = 2x - 2

Answers

Answer:

D. y = 2x - 2

Step-by-step explanation:

1) First, find the slope of the given line. Place it in slope-intercept form to identify its slope easily. Isolate the y in the equation:

[tex]2y-4x = 1\\2y = 4x+1\\y = 2x+\frac{1}{2}[/tex]

A line placed in slope-intercept form is represented by the formula [tex]y = mx + b[/tex]. The [tex]m[/tex], or the coefficient of the x-term, represents the slope. Thus, the slope of this line is 2.

2) Lines that are parallel share the same slope. So, the slope of the parallel line will have 2 as its slope as well.

We now have enough information to write the equation of the line in point-slope form. From there, we can convert it to slope-intercept form and find out which option is correct.

Use the point-slope formula [tex]y-y_1 = m (x-x_1)[/tex] and substitute values for [tex]m[/tex], [tex]x_1[/tex], and [tex]y_1[/tex]. Since [tex]m[/tex] represents the slope of the line, substitute 2 in its place. Since [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of a point the line intersects, substitute the x and y values of (4,6) into the formula as well. Then, with the resulting equation, isolate y like before to find which option is correct:

[tex]y-6 = 2(x-4)\\y-6 = 2x-8\\y = 2x-2[/tex]

So, option D is correct.  

Ursula picks carrots and radishes from her garden. She picks 4/1/4 pounds of carrots and 1/3/4 pounds of radishes.How many more pounds of carrots does she pick than radishes.

Answers

Answer:

2 1/4

Step-by-step explanation:

[tex]4\frac{1}{4} - 1\frac{3}{4}[/tex]

[tex]3\frac{1 - 3}{4}[/tex]

[tex]2\frac{4-3}{4}[/tex] = 21/4

The box plot represents this data set
20,25,30,38,40,42,45,50,65,70
what value does the letter E represent on the box plot of the data?

I------------| | |-----------|
A B C D E

Answers

Answer:

Step-by-step explanation:

In your diagram, E appears to be the MAXIMUM value of the data (70).

In circle P shown, the measure of angle P Q S is 20°.

Answers

Answer:

D 70

Step-by-step explanation:

Hello there!

A triangle formed inside of a circle using the diameter ( segment RQ ) is a right triangle

Meaning that the angle across from the hypotenuse ( diameter ) is a right angle ( = 90 degrees )

That being said we are given two angles (90 and 20 ) so we can easily calculate the measure of the missing angle

Remember the sum of the angles in a triangle is equal to 180 so we can find the missing angles by subtracting the given angles ( 90 and 20 in this case ) from 180

angle PRS = 180 - 90 - 20

180 - 90 = 90

90 - 20 = 70

Therefore your answer is D. 70

A local drive-in theatre sells entrance tickets for cars on weekend nights. At capacity, the drive-in can hold 72 cars. The function C(n) =25n represents the drive in's revenue on a weekend night, where n represents the number of cars. in this situation, what is the domain of c(n)?

Answers

Answer:

Domain is: 0 ≤ n ≤ 75 where n is an integer

Step-by-step explanation:

PLEASE help it’s due today at 10pm

Answers

Sorry bro its past 10pm now, hope you figured it out

what is the slope of the line below?

Answers

Answer:

1/2

Step-by-step explanation:

To find slope just compare two points on the graph and then put them into fraction form like so y/x

(2r^2t ^3)^2
4t^2
explain what you would do first to simplify the expression below.

Answers

Answer:

first expand the brackets

In this problem a,b,c and d are nonzero integers. If a/b is added to x, the sum is c/d. Which statement can be used to prove that x must be a rational number.

A= x=cb-ad/bd B= x=cb+ad/bd C= x=c-a/d-b D= x= c+a/d-b

Answers

Answer:

x=cb-ad/bd

Step-by-step explanation:

The statement which can be used to prove that x must be a rational number is x = (cb - ad) / bd

Prove of rational number

Given nonzero integers:

a, b, c, d

If a/b is added to x

a/b + x

the sum is c/d

a/b + x = c/d

prove x to be a rational number

a/b + x = c/d

subtract a/b from both sides

a/b + x - a/b = c/d - a/b

x = c/d - a/b

x = (cb - ad) / bd

Therefore, the statement which can be used to prove that x must be a rational number is x = (cb - ad) / bd

Learn more about rational number:

https://brainly.com/question/12088221

using this distribution find the probability that a teenager has 3 or fewer pairs of shoes in their closet(answer in decimal form)​

Answers

Correct me if I’m wrong

Answer:

.7

Step-by-step explanation:

The following data table represents the total cost of a monthly cell phone bill as a function of the number of minutes that the phone is used each month.

The table shows that as more minutes are used each month, the total monthly cost will increase at the same rate. Assuming that this is true, what is the total monthly cost for the cell phone if it is used for 2,500 minutes?

Answers

Answer:
The total monthly cost would be $214

explanation:
They gave us 1,250, which is half of 2,500. multiplication:
1,250 = 2,500
107 = x
2 × 1,250 = 2,500
2 × 107 = 214
Therefore, the total monthly cost if the cell phone is used for 2,500 minutes is $214.

can i get some help please i would really appreciate it ;)

Answers

A. They go on forever

Well there are 5 questions
Please help
Will give brainliest

Answers

Answer:

1. 30

2. x = 0

3. x = 10

4. 11.7

5. 60

Step-by-step explanation:

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