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horsena [70]
3 years ago
8

8.

Mathematics
1 answer:
Naya [18.7K]3 years ago
3 0

Answer:

63.6cm²

Step-by-step explanation:

Area of square = 81

Side of square = \sqrt{81}

                        = 9

-----------------------------------------

diameter of circle = 9

radius of circle = 9 ÷ 2

                        = 4.5

area of circle = πr²

                      = π (4.5)²

                      = 63.6172512  

                      ≈ 63.6 cm²

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