Question

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

Answer 1

Explanation:

Using Trignometry,

sin60° = BC/10.

=> BC = 10sin60°

= 10 * (√3/2) = 5√3 = 8.7. (1d.p.)

Answer 2

`\sin(60°) = (BC)/(10) \\ ( √(3) )/(2) = (BC)/(10) \\ BC = (10 √(3) )/(2) \\ BC= 5 √(3)\\\boxed{\red{BC= 8.7}}`

8.7 is the right answer.