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)
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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
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