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slavikrds [6]
3 years ago
9

A circle with radius of 4 cm sits inside a circle with radius of 11 cm.

Chemistry
1 answer:
Doss [256]3 years ago
7 0

Answer:

Area of the shaded region = 329.7cm

Explanation:

Area of circle = π r2

Area of smaller circle with radius of 4 cm = 3.14 * 4 * 4 = 50.24cm

Area of bigger circle with radius of 11 cm = 3.14 * 11 * 11 = 379.94cm

To calculate the area of shaded region,

Area of the shaded region = bigger region - smaller region

39.7 - 50.24 = 329.7cm

Area of the shaded region = 329.7cm

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