Question

A, B & C form the vertices of a triangle. ∠ CAB = 90°, ∠ ABC = 68° and AB = 8.9. Calculate the length of BC rounded to 3 SF.

Answer 1

Answer:23.8

Explanation:

Trig

SohCah toa

cos is adj /hyp

cos(68) x Hyp =Adj

Adj cos(68)=Hyp

8.9 /cos(68)=23.758