Question

In ?ABC, the measure of ?C=90°, the measure of ?A=30°, and CA = 68 feet. Find the length of BC to the nearest foot

Answer 1

39 feet

Explanation:

Since the triangle is right we can use the tan ratio to find BC

tan 30° =
`(opposite)/(adjacent)` =
`(BC)/(68)`

multiply both sides by 68

68 tan 30° = BC ⇒ BC ≈ 39 feet ( to nearest foot )