Question

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If the area of the shaded region in the given figure is 24.64 cm², find the radius of the circle.
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Answer 1

Answer:

this part is 1/4 for circle

so we need to find it's total area then we can find it's radius

total area of circle = π × r²

24.64 × 4 = 22/7 × r²

3136 = r²

r = 28

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