Question

2. If the circumference of a circular sheet is 154 cm, find its radius.
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Answer 1

Answer:

circumference of circle=2πr

154=2πr

154=2×22/7×r

154×7/22=r

7×7= r

49 cm =r

Answer 2

Given ....

Circumference of circular sheet => 154cm

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Concept to find out ...

Find radius => ???

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Formula used...

Circumference => 2πr.

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Solution...

Circumference of circular sheet => 154cm²

2πr = 154cm

$2 \times \frac{22}{7} \times \: r= 154 \\ \\ \frac{44}{7} \times r = 154 \\ \\ r = > \frac{154 \times 7}{44} \\ \\ r = > \frac{1078}{44} \\ \\ \boxed{r = > 24.5cm }$

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Hope it's helps you ☺️

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