Question

What is the answer to number 16​

Answer 1

b ≈ 13.80 in

Explanation:

Since the triangle is right use the tangent ratio to solve for b

tan17.71° =
`(opposite)/(adjacent)` =
`(AC)/(BC)` =
`(AC)/(43.21)`

Multiply both sides by 43.21

43.21 × tan17.71° = AC, hence

AC = b ≈ 13.80 ( to 2 dec. places )