8. In the figure, a circle is inscribed in a square ABCD. If the area of the square is 81 cm², find the area of the circle. (Give the answer correct to 3 significant figures.)

Question

asked Jul 20, 2022 193k views

1 Answer

Akhil Sundar · Answer 1 · 2022-07-24T01:13:27+0000

Answer:

63.6cm²

Explanation:

Area of square = 81

Side of square =
√(81)

= 9

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diameter of circle = 9

radius of circle = 9 ÷ 2

= 4.5

area of circle = πr²

= π (4.5)²

= 63.6172512

≈ 63.6 cm²