Question

The circumference of a circular garden is 60 m. find its diameter $(\pi =\frac{22}{7})$

Answer 1

Circumference of a circle of radius r = $2\pi r$

$\Rightarrow 2\pi r=60\Rightarrow r=\frac{60}{2\times \left(\frac{22}{7}\right)}=\frac{60\times 7}{2\times 22}=\frac{15\times 7}{11}=\frac{105}{11}$

$\Rightarrow$ diameter = $2r=\frac{210}{11}m$