Question

In this triangle, what is the value of x?

Enter your answer, rounded to the nearest tenth, in the box.
x =

Answer 1

67.1

Explanation:

i took the test

Answer 2

To find x you can use cosine since you know the adjacent side and the hypotenuse. Remember that for cosine it is adjacent over hypotenuse

cos(x) =
`(28)/(72)`

cos(x) =
`(7)/(18)`

To find the x we must take the inverse of cosine:

`cos^(-1)`(
`(7)/(18)` = x

x = 67.1146...

x ≈ 67.1 degrees

Hope this helped!

~Just a girl in love with Shawn Mendes