Question
If the circumference of a circle is 176 cm, find its radius.

Answer

Circumference $( c )=176 cm$
$
\begin{aligned}
& \therefore 2 \pi r =176 \\
& \therefore 2 \times \frac{22}{7} \times r =176 \\
& \therefore \frac{44}{7} xr =176 \\
& \therefore r =176 \times \frac{7}{44}=28 cm
\end{aligned}
$
$\therefore$ The radius of the circle is $28 cm$.

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