Question

A kid's jogging track is in the shape of a circular ring and has outer and inner radii as 8m
and 6m respectively.
a) Find the area of the jogging track
b) Find the width of the jogging track​

Answer 1

$\pi \: r {}^{2}$

$22 \div 7 \times 8 \times 8 = 201.1$

$22 \div 7 \times 6 \times 6 = 113.1$

$a)201.1 - 113.1 = 88$

$b)8 - 6 = 2$