Question

2. Find the radius of a circle whose circumference is 52.8 cm. (Take pie = 22/7)​

Answer 1

Answer:

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Step-by-step explanation:

Given circumference, C = 52.8 cm

We know that the circumference of the circle = 2 π r

Therefore radius, r = C/2 π

r = (52.8 × 7)/ (2 × 22)

r = 369.6/ 44

r = 8.4 cm

Answer 2

Answer:

Radius of the circle is 8.4 cm.

Step-by-step explanation:

Let's assume that, the radius is r.

Then the circumference is 2πr

According to the problem:

2πr = 52.8

∴  $r=\frac{52.8}{2.\frac{22}{7} } cm = \frac{(528).(7)}{(10).(2).(22)} cm = 8.4 cm$