Question

the inner circumference of a circular track is 176m. the track is 7m wide. calculate here: area of the track.

Answer 1

This is ur answer hope it will help u in case of any doubt comment below

Answer 2

Answer:

1386 sq.m.

Step-by-step explanation:

Circumference = $2 \pi r$

Since we are given that the inner circumference of a circular track is 176m

So, $176 =2 \pi r$

$176 =2\times \frac{22}{7} \times r$

$\frac{176}{2\times \frac{22}{7}}=r$

$28=r$

thus the inner radius = 28 m

Outer radius = inner radius + width

                  = 28+ 7

                  = 35 m

Area of track = Total area including width - inner area

                      =$\pi R^2-\pi r^2$

                      =$\frac{22}{7} (35^2-28^2)$

                      =$1386 m^2$

Hence the area of track is 1386 sq.m.