Question

Find the value of x in the isosceles triangle shown below.
13
V13
2

Answer 1

x = 6

Explanation:

use Pythagorean theorem:

a² + b² = c²

where a = 2

b = x/2

c = √13

plugin values into the formula:

2² + (x/2)² = (√13)²

4² + x² = 13

4

16 + x² = 13 (4)

x² = 52 - 16

x = √36

x = 6