Area and Perimeter of a Circular Annulus

Area and Perimeter of a Circular Annulus

Secondary 1

Find the area and perimeter of the shaded region. \(\left( \mathrm{Take}\,\,\pi =\frac{22}{7} \right)\)

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Answer:Area \(=905\text{ cm}^2\) (3 s.f.) Perimeter \(=201\text{ cm}\) (3 s.f.)

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