Question

Draw a polygon. The length is 8 inches on top. 12 inches on bottom. Left inside is 7 in and right inside is 8 in. Find the area.

80in
65in
70in
75in

Answer 1

The above diagram is an example of a polygon using the measurements given in the question (ABCD). As you can see, it is essentially composed of two different shapes:
- A rectangle, and
- A right-angled triangle (ABE)



-To find the area of the rectangle, we calculate length x width.

-To find the area of the right-angled triangle above it, we caluclate (1/2 base) x (height). Here the base is the length BE (from point B to point E) and the height is the length AE (from A to E).

So, the total area of the polygon will be these two values added together. Hope that helps! :)