Question

Find the radius of circle if the circumfrances is 154cm

Answer 1

hey mate
here is your answer

circumfrance of circle =2πr
$154 = 2\pi \: r \\ 154 = 2 \times \frac{22}{7} \times r \\ \frac{154 \times 7}{44} = r \\ \frac{1078}{44} = r \\ 24.5 = r$
radius =24.5

hope it helps

Answer 2

hey mate here is your answer

given....

in a circle

r=?

circumference=c=154cm

now

c=2πr

so r=c/2π

r=154×7/44

=25.5cm

hope it will be helpful to you

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