Question

Kindly tell me the area of the shaded region of the attached figure..​

Answer 1

Answer:

425 sq. unit

Step-by-step explanation:

Here it can be seen that the whole figure is a square.

Now the sides of the bigger square are given.

We know that all angles of a square measure 90 degrees.

Now, if we observe closely, we can see that at each corner a right angled triangle is formed.

There are 4 Right triangles.

Area of four triangles = 4 * 1/2 * 5 * 20 = 200 sq. units

Area of the whole square = 25^2

                                           = 625 sq. units

Area of shaded region = 625 - 200

                                      = 425 sq. unit