joyaghawi63 joyaghawi63

10-07-2020
Mathematics

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Find the area of the circle to the nearest hundredth with r=4cm. d=18in.

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Аноним Аноним

10-07-2020

Answer:

1.

r = 4 cm

A(circle) = π·r²

= π·(4cm)²

= 3.14·16cm²

= 50.24 cm²

2.

d = 18 in

d = 2r => r = d/2 = 18in/2 = 9 in

A(circle) = π·r²

= 3.14·(9in)²

= 3.14·81in²

= 254.34 in²

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