find the area of polygon
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Answer:
To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides. Apothem = a segment that joins the polygon's center to the midpoint of any side that is perpendicular to that side.
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Answer:
424 cm²
Step-by-step explanation:
ar( sqr ABCF)=18*18=324 cm²
area of trapezium CDEF
=1/2(CF+DE)*h
=1/2( 18+7)*8
=4*25=100 cm²
Total area=324+100=424 cm²
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