Question

In the triangle below, angle B measures 60° and BC is 18. What is the length of AC

Answer 1

The above answer is correct! The answer is D, or
`9√(3)`.

Just got it right on edge 2020, hope this helps!! :) Good luck!

Answer 2

`AC=9√(3)\ units`

Explanation:

see the attached figure to better understand the problem

In the right triangle ABC

`sin(60\°)=(AC)/(BC)`

`sin(60\°)=(√(3))/(2)`

so

`(AC)/(BC)=(√(3))/(2)`

we have

`BC=18\ units`

substitute

`(AC)/(18)=(√(3))/(2)`

`AC=18(√(3))/(2)=9√(3)\ units`