Question

Does anyone know the answer?

Answer 1

The goal is to find the length of side BC. You need the trigonometric function “sine” to solve this.

sin(angle) = (opposite) / (hypotenuse)

Plugging in:
sin(65°) = (?) / (6)

Solve for the (?):
6 * sin(65°) = (?)

With a calculator, I find the answer to be approximately
(?) = 0.90631

Answer 2

5.44

Explanation:

From Trigonometry Identity,

Sin65= CB/AB

CB = AB Sin65

= 6 × Sin65

= 5.4378

= 5.44{ to the nearest hundredth}