Question

What is BC? Given ABC is a right triangle with right angle C? AC= 15 centimeters and m

Answer 1

BC ≈ 12.6 cm

Explanation:

Since the triangle is right use the tangent ratio to find BC

tan40° =
`(opposite)/(adjacent)` =
`(BC)/(AC)` =
`(BC)/(15)`

Multiply both sides by 15

15 × tan40° = BC, hence

BC ≈ 12.6 cm ( to 1 dec. place )