In a 30-60-90 triangle, if the side opposite the 30° angle has a length of x, then:
- The other side has a length of x√3
- The hypotenuse has a length of 2x
Click on the link below for a picture.
https://upload.wikimedia.org/wikipedia/commons/1/15/Triangle_30-60-90_rotated.png
You should be able to figure it now.

Philip P.
tutor
Which leg is AC, the one opposite the 30° angle or the leg next to (adjacent) the 30° angle?
- If AC is the leg opposite to the 30° angle, then 12 = x. The hypotenuse is 2x, so it's 2*12 = 24
- If AC is the leg adjacent to the 30° angle, then 12 = x√3 and 4√3 = x. The hypotenuse is 2x so it would be 2*4√3 = 8√3
Report
05/20/17
Shelisia J.
05/20/17