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  • 25-08-2017
  • Mathematics
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What is area of shaded area

What is area of shaded area class=

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apologiabiology
apologiabiology apologiabiology
  • 25-08-2017
the area of the shaded reigon=octagonarea-squarearea

octogon=8 times 1/2 times base times apothem or
4 times base times apothem=4 times 15 times 18.11=1086.6 square units

the area of the rectangle (or square) is side times side or 15*15=225

the shaded area=1086.6-225=861.6 square units

the shaded area is 861.6 square units
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