Question

If your gonna answer thanks. Can someone please get me the answer fast

Answer 1

Step-by-step explanation:

Using Trignometry,

sin60° = BC/10.

=> BC = 10sin60°

= 10 * (√3/2) = 5√3 = 8.7. (1d.p.)

Answer 2

Answer:

$\sin(60°) = \frac{BC}{10} \\ \frac{ \sqrt{3} }{2} = \frac{BC}{10} \\ BC = \frac{10 \sqrt{3} }{2} \\ BC= 5 \sqrt{3}\\\boxed{\red{BC= 8.7}}$

8.7 is the right answer.