Question

In QRS the measure of S=90, the measure of Q=29 and SQ=5 feet. find the length of QR to the nearest tenth.r​

Answer 1

QR ≈ 5.7 ft

Explanation:

Using the cosine ratio in the right triangle

cos29° =
`(adjacent)/(hypotenuse)` =
`(QS)/(QR)` =
`(5)/(QR)` ( multiply both sides by QR

QR × cos29° = 5 ( divide both sides by cos29° )

QR =
`(5)/(cos29)` ≈ 5.7 ( to the nearest tenth )