Question

In the right triangle shown, mZA = 30° and BC = 6/2.
How long is AC?

Answer 1

x = 18

Explanation:

Since 30-60-90 triangles have a side ratio of y : y√3 : 2y.

Since 2y, here, is 12√3, then y is 6√3.

This means that the side x, is 6√3 * √3, which is:

x = 6√3 * √3

= 6 * 3

x = 18