the inner circumference of a circular track is 330 M the track is 10.5 M wide everywhere calculate the cost of putting up a fence on the outer circle at the rate of rupees 20 per metre
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2πr = 330
r= 330×7/44 = 210/4=52.5
radius of outer cell = 52.5 + 10.5 = 63
perimeter of outer cell = 2×22/7 × 63= 396
cost of fencing for 1 meter is 20
so cost of fencing 396 m is 20×396= 7920 Rs.
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r= 330×7/44 = 210/4=52.5
radius of outer cell = 52.5 + 10.5 = 63
perimeter of outer cell = 2×22/7 × 63= 396
cost of fencing for 1 meter is 20
so cost of fencing 396 m is 20×396= 7920 Rs.
mark it brainliest.
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