Question

Find the area of this polygon.Please help me .I will mark as BRAINLIST.

Answer 1

Since we cannot use the apothem method, we will have to assume that the ar = S2. Therefore, area will be 180cm2

Answer 2

The area enclosed by the polygon is 17.5 sq. cm.

Explanation:

Area of the rectangle: length x breadth
Length = 6 cm
Breadth = 3 cm

Area of the rectangle: 6 cm x 3 cm = 18 sq cm

The two sides of the triangular part of the rectange( not enclosed, making it right angle triangle) is 1 cm each

So the outside triangle area is 1/2 x 1 cm x 1 cm = 1/2 cm sq


Total enclosed area of the polygon = rectangular area - triangular area = 18 sq. cm - 1/2 sq. cm =17.5 sq. cm

Hence, the area enclosed by the polygon is 17.5 sq. cm.