Question

If the red square has an area of 200 square centimeters and the green square has an area of 60 square centimeters, then was is the area of the yellow square?

Answer 1

140

Explanation:

You want the area. You do not have to take the square root. First of all you have to assume this is a right angle triangle.

c^2 = b^2 + a^2

c^2 = 200

b^2 = 60

a^2 = ?

200 = 60 + a^2

200 - 60 = a^2

a^2 = 140