Question

Find the value for the side marked below.

Round your answer to the nearest tenth.
5
8°
y
y =
?
Enter

Answer 1

y = 5

Explanation:

cos 8° =
`(5)/(y)`

(cos 8°)y =
`((5)/(y) )`y

ycos 8° = 5

`(ycos 8)/(cos 8)` =
`(5)/(cos 8)`

= 5.049137863

rounded to the nearest tenth is 5.0