Question

Find the length of XY.

Imported Asset

4

8

16

11.3

Answer 1

Answer: 8 (The second option).

Explanation:

1. To solve this exercise you draw a line to a point O, this lines will bisect the angle of Z∠60°. Then will obtain two into two right triangles with two angles of 30° at the point Z.

2. The lenght XY will be twice the lengt XO or YO.

3. Let's calclate XO as following:

`sin(30)=(XO)/(8)\\XO=4`

4. Then, XY is:

`XY=2XO\\XY=2*4\\XY=8`