Area of the circular pathway is 352 square cm and the outer radius is 16 cm find the inner radius
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Answer:
12 cm
Step-by-step explanation:
Area of circular pathway = Area outer circle - Area of inner circle
Area of Inner Circle = π(16)² - 352
= 804.57 - 352 = 452.57 sq. cm.
Let r be the radius of inner circle.
Area of inner circle = πr² = 452.57
=> r² = 452.57 * 7/22 = 144
=> r = 12 cm.
Thus radius of inner circle = 12 cm.
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