Question

If circumference is 72.6 find its radius and dimeter

Answer 1

Given, The Circumference is72.6

Formula to be used :

$\boxed{\mathbf{Circumference \: of \: Circle = 2πr}}$

$\underline{\underline{\huge\mathfrak{Solution}}}$

$\bf Circumference = 72.6 \\ \\ 2\pi r = \frac{726}{10} \\ \\ 2 \times \frac{22}{7} \times r = \frac{363}{5} \\ \\ r = \frac{363}{5} \times \frac{7}{22} \times \frac{1}{2} \\ \\ r = \frac{33 \times 7}{5 \times 2 \times 2} \\ \\ r = \frac{231}{20} \\ \\ \bf r = 11.55 \: units$

We know that,

D = 2r

Diameter = 2(11.55)
Diameter = 23.1 units.

$\bf \therefore The \: radius \: and \: the \: diameter \\ \bf of \: the \: circle \: are \: 11.55 \: units \: and \\ \bf 23.1 \: units$

Answer 2

find the radius and diameter and circumference is 72 .6