Question

Helpppppppp please, i would like some help so i dont have to do it later lol

Answer 1

Given all sides are right angles, the height of the sides are equal.

left side = 12

right side = x+5

set equation equal to each other and solve for x.

12 = x +5 =>> 12-5 = x =>> x = 7

x = 7 cm