Question

What is the area of the shaded region?
please help guys ​

Answer 1

Answer is 330

Explanation:

`area \: of \: shaded \: region = \pi \: {r}^(2) - \pi {x }^(2) \\ here \: r = 11cm \: and \: x = 4cm \\ = \pi( {r}^(2) - {x}^(2) ) \\ = \pi( {11}^(2) - {4}^(2) ) \\ = \pi(121 - 16) \\ = \pi(105) \\ = (22)/(7) * 105 \\ = 22 * 15 \\ = 330 \: {cm}^(2) \\ therefore \: area \: of \: the \: shaded \: region \: = 330 \: {cm }^(2)`

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