Question

the inner circumference of a circular race track is 264 m and the width of the track is 7m calculate the cost of putting a fence along the outer circle of the track @ rupees 3.50
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Answer 1

Answer:

Rs=1078/-

Step-by-step explanation:

inner cercumference of circuler track=264m

then,

2πr=264

or r=264/2π

or r=42m

wedth of track =7m

radius of outer circle=42+7

=49m (r')

circumference of outer circle=2πr'

=2×22/7 ×49

=308m

cost of fence=308×3.50

=Rs 1078/-