Question

Find the area of the shaded regionA: 308 centimeters squaredB:284 centimeters squaredC: 272 centimeters squaredD: 548 centimeters squared

Answer 1

1.- Area of the square

Area = 20 x 20

= 400 cm^2

2.- Area of the up-right triangle

Area = 20 x 14/2 = 140 cm^2

3.- Area of the down-left triangle

Area = 20 x 12/2 = 120 cm^2

4.- Area of the small triangle

Area = 6 x 8/2 = 24 cm^2

5.- Area of the shaded area

Area = 400 - 140 - 120 - 24

Area = 116 cm^2

The opposite of 116 is 284 cm^2, so letter B is the answer.