Question

How do i solve for x?

Answer 1

21/5

Explanation:

Since two pairs of corresponding angles are equal, we know that these two triangles are similar.

By the pythagorean theorem,

the unknown side length of the triangle to the left is

`\sqrt{5^(2) -4^(2) } = 3`

Since the triangles are similar,

7/5 = x/3

x=21/5