Question

AngleB =

Round your answer to the nearest hundredth.
А
5
?
B
С
4.

Answer 1

`B=36.87`

Explanation:

As we are given the adjacent (a) side and the hypotenuse (h), we can use the cosine function to find the measure of angle B.

Recall that
`cos(B)=(a)/(h)`

This means that in order to find B, we need to take the inverse of cosine

This gives us

`B=cos^(-1) ((4)/(5) )`

From a calculator, we find that the answer of this is

`B=36.869`

When this is rounded to the nearest hundredth, we get

`B=36.87`