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Alpha Exercise: Find the perimeter and area of composite shapes made of rectangles and semicircles.

Two geometric shapes made of rectangles and semicircles: Shape (1) is a rectangle with a semicircle on top, labeled 12 cm and 7 cm; Shape (2) is a rectangle with semicircles on both ends, labeled 6 cm and 8 cm.

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Show Answer Key & Explanations Step-by-step solution for: G17e - Perimeter and area of composite shapes made up of polygons ...

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- (1) a) Perimeter: $38 + 6\pi$ cm, b) Area: $84 + 18\pi$ cm²
- (2) a) Perimeter: $16 + 6\pi$ cm, b) Area: $48 + 9\pi$ cm²

Parent Tip: Review the logic above to help your child master the concept of perimeter and area of composite figures worksheet answers.

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