Question

Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form.

5
60°
10
x
Not drawn to scale

Answer 1

D

5 sq.rt. 3

Explanation:

use the pythagorean theorem: a^2 + b^2 =c^2

5^2 + x^2 = 10^2

25+ x^2 =100

x^2 = 100 - 25

x^2 =75

x =
`√(75)`

x = 5
`√(3)`