Question

find the radius of a circle whose circumference is 52.8

Answer 1

Hi friend
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Your answer
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Circumference of a circle = 52.8 cm

Circumference formula = 2πr

so,
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$2 \times \pi \: \times r = 52.8 \\ \\ 2 \times \frac{22}{7} \times r = 52.8 \\ \\ r = \frac{528 \times 7}{10 \times 22 \times 2} \\ \\ r = \frac{84}{10} \\ \\ r = 8.4 \: cm$
THEREFORE,
--------------------

The radius of the circle measures = 8.4 cm

HOPE IT HELPS

#ARCHITECTSETHROLLINS

✯ BRAINLY STAR ✯

Answer 2

Answer:

Circumference of a circle = 52.8 cm

Circumference formula = 2πr

so,

------

\begin{lgathered}2 \times \pi \: \times r = 52.8 \\ \\ 2 \times \frac{22}{7} \times r = 52.8 \\ \\ r = \frac{528 \times 7}{10 \times 22 \times 2} \\ \\ r = \frac{84}{10} \\ \\ r = 8.4 \: cm\end{lgathered}

2×π×r=52.8

2×

7

22

×r=52.8

r=

10×22×2

528×7

r=

10

84

r=8.4cm

THEREFORE,

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

The radius of the circle measures = 8.4 cm

HOPE IT HELPS