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5 votes
Find the area of the polygon.

4 cm

8 cm

8 cm

4 cm

4 cm

4 cm

The area of the polygon is nothing



cm.cm.

cm squared .cm2.

cm cubed .cm3.

​(Type a whole​ number.)

Find the area of the polygon. 4 cm 8 cm 8 cm 4 cm 4 cm 4 cm The area of the polygon-example-1
User Neil
by
3.4k points

1 Answer

3 votes

Answer:


A=128\ cm^2

Explanation:

we know that

The area of the polygon is equal to the area of a square plus the area of four congruent triangles

so


A=b^2+4[(1)/(2)(b)(h)]

where


b=8\ cm\\h=4\ cm

substitute


A=8^2+4[(1)/(2)(8)(4)]


A=64+64=128\ cm^2

User Zamel
by
2.7k points