Question

A design is made up of four congruent right triangles as shown in figure. Find the area of the shaded portion

Answer 1

Answer: 300 cm^2

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Step-by-step explanation:

The shaded figure is a square, so the hypotenuse of the right triangles will be the side of the square.

So,

x^2 = 10^2 + 20^2

x= √300 = 10√3

Area of square = side^2

                         = 10√3 * 10√3

                         = 300 cm^2