Question

if the circumference of the circle is 143 m. then calculate the radius and diameter​

Answer 1

Given,

Circumference of circle = 143 m

$Circumference \: of \: circle = 2\pi \: r \\ 143 = 2 \times \frac{22}{7} \times r \\ 143 = \frac{44}{7} \times r \\ r = \frac{143 \times 7}{44} \\ r = \frac{1001}{44} \\ r = 22.75$

Therefore the radius of circle is 22.75 cm and diameter of circle is 45.5cm.