Question

3. If S = 4.pie r square, find
) the value of S when 10
is 1 upon 2
(ii) the positive value of r when S = 616.
(take pie to be 22 upon 7)
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Answer 1

Answer:

<b>InCase1</b>

✔️ R = 10 1/2

As it is in mixed form so make it improper

We get,

➡️ R = 21/2

S = pi r ^2 (Given)

So, pit values

➡️ S = 22/7 × 21/2 × 21/2

➡️ S = 11 × 21/2 × 3

➡️ S = 346.5

< b > In Case 2 < /b ><b>InCase2</b>

S = 616 (given)

S = pi r ^2 (Given)

616 = 22/7 × r^2

616 × 7/22 = r^2

R^2 = 196

R = /~196

R ➡️ 14

_____________________

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