Question

3) Given: A circular track whose inner circumference is 220m.
If the track is having a uniform width of 7m,find the area
of the circular track.(Take n= 22)
​

Answer 1

Answer:

1694

Step-by-step explanation:

As we know that the circumference of a circle is 2pii r

it means 2×22/7×r = 220

r= 220×7/22×1/2

r = 35

according to statement there is a track of width 7 m due to which R= r+ 7

R = 7+35

R= 42

now area of track = piR square - pi r square

22/7×(42×42-35×35)

22/7(539)

22×77

1694 is the answers