Question

the circumference of circular garden is 66 m.find its diameter.π=22/7

Answer 1

$circumference \: of \: a \: circle = 2\pi \: \times r$
where r is the radius of the circle

given that the circumference of the circular garden = 66 m


$therefore \: 2\pi \times r = 66$
$2 \times \frac{22}{7} \times r = 66$
$r = \frac{66 \times 7}{2 \times 22}$
$= \frac{21}{2}$
$therefore \: diameter \: of \: the \: circular \: garden = 2 \times r$
$= 21 \: m$

Is this helpful?