Question

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

Answer 1

Answer:

$2\pi \: r = 176 \\ r = \frac{176 \times 7}{2 \times 22} \\ r = 28$

Answer 2

Given :-

If the circumference of a circle is 176cm

To Find :-

Radius

Solution :-

We know that

$\bf Circumference = 2\pi r$

$\sf 176 = 2\times\dfrac{22}{7}\times r$

$\sf 176 = \dfrac{44}{7}\times r$

$\sf \dfrac{176 \times 7}{44}=r$

$\sf \dfrac{1232}{44} = r$

$\bf 28 = r$