Question

find the are of circle whose circumfrence is 52.8cm​

Answer 1

Answer:

A

≈

221.85

cm²

C

Circumference

Answer 2

Formula of the circumference of the circle

$\bold {= 2\pi r}$

Circumference = 52.8

ATQ,

$2 \times 3.14 \times r = 52.8 \\ = > r = 52.8 \div 6.28 \\ = > r = 8.41(approx)$

Area =

$\bold{\pi {r}^{2} } \\ = 3.14 \times 8.41 \times 8.41 \\ = 222.1 \: c {m}^{2}$

ANSWER BY

APPROX

VALUE OF

RADIUS

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