find the area of a circular ring whose inner and outer radii are 16cm and 19cm,respectively.
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Answered by
6
Area of circular region = Area of the annulus= 22/7 * 19^2 - 16^2
= 22/7 * 105
= 330 cm^2.
= 22/7 * 105
= 330 cm^2.
Answered by
4
Area of circular ring = (Area of outer circle)-(Area of inner circle)
= π(19)^2 - π(16)^2
= 330 sq cm
= π(19)^2 - π(16)^2
= 330 sq cm
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