Question

Find the length of BC to the nearest teeth of a foot.

Answer 1

Determine the length of BC by using trigonometry for the angle A.

`\begin{gathered} \sin 64=(BC)/(AB) \\ 0.899=(x)/(2.7) \\ x=2.7\cdot0.899 \\ =2.4273 \\ \approx2.4 \end{gathered}`

So answer is 2.4 foot.