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Find the area and perimeter of the compound shape.

Find the area and perimeter of the compound shape.-example-1
User Adam Burke
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1 Answer

1 vote

Answer:

Area = 324.29ft²

Perimeter = 74.05ft

Area

Areas of individual shapes:

Triangle ABF Area = (9.3 x 4.2) / 2 = 19.53ft²

Triangle CDE Area = (9.3 x 4.2) / 2 = 19.53ft²

Rectangle FECB Area = 153.72ft²

Semi-Circle BC Area = πr² = π x (18.3/2)² = π x 83.7225 = 263.02... / 2 = 131.51ft²

Total area of compound shape:

19.53ft² + 19.53ft² + 153.72ft² + 131.51ft² = 324.29ft²

Perimeter

Perimeter of Semi-Circle:

π x d = π x 18.3 = 57.49... / 2 = 28.75ft

Total perimeter of compound shape:

18.3ft + 9.3ft + 9.3ft + 4.2ft + 4.2ft + 28.75ft = 74.05ft

User Selbi
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