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finlep [7]
3 years ago
15

If the diameter of a circle is 9 cm, then its circumference is 56.52 cm.?????

Mathematics
2 answers:
Tems11 [23]3 years ago
5 0
No the circumference of the circle is not 56.52. According to the formula which is pi x diameter all you have to do is multiply 9 times pi which is 3.14. This would equal 28.26cm, not 56.52cm.
IRISSAK [1]3 years ago
3 0
Circumference if the circle=
2πr or πd
Substitute the diameter=9cm into second equation
C=9π
C≈9×3.14
C≈28.26 cm. As a result, it is false that the circumference will be 56.52 cm if the diameter eqaul 9 cm. Hope it help!
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