Shaded Area

Finding the shaded area of an object is not that difficult if you are familiar with finding area of compound figures.

See the image below. It is a compound figure with two triangles. 

To find the shaded area, we need to find the area of the BIGGER TRIANGLE and the SMALLER TRIANGLE and find the DIFFERENCE between them.

Area of bigger/outer triangle = 1/2 b x h

                              = 1/2 x 32 x 24

                              = 384m²

 

Area of smaller/inner triangle = 1/2 b x h

                               = 1/2 x 20 x 16

                               = 160m²

 

Area of shaded region = Area of bigger triangle – Area of smaller triangle

                      = 384 - 160

                      = 224m²

Watch the video below on finding the Area of a shaded region: 

Also, try on this quick exercise and see how you do:

https://drive.google.com/file/d/1X7fKr_WVW-oy2x1UJmYd7bgTyYNzoSzb/view?usp=sharing