Question

What is the length of AC? Round to the nearest tenth.

Answer 1

AC ≈ 10.5 cm (1 dec. place )

Explanation:

Given

tan55° =
`(15)/(b)`

Multiply both sides by b

b × tan55° = 15 ( divide both sides by tan55° )

AC = b =
`(15)/(tan55)` ≈ 10.5 cm