Step-by-step explanation:
area of path is 808.5cm^2
cost of gravelling the path is Rs. 38808
area of path=area of whole circle-area of pot
are of pot =pi×r^2
=22÷7×7^2
=22÷7×7×7
=22×7(because÷7and×7 cancel)
=154m^2
area of whole circle=pi×r^2
=22÷7(35+3.5)^2
=22÷7×38.5^2
=3.14×1482.25
=465426.5m^2
area of path=465426.5m^2-154m^2
=465272.5m^2
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Verified answer
Step-by-step explanation:
area of path is 808.5cm^2
cost of gravelling the path is Rs. 38808
area of path=area of whole circle-area of pot
are of pot =pi×r^2
=22÷7×7^2
=22÷7×7×7
=22×7(because÷7and×7 cancel)
=154m^2
area of whole circle=pi×r^2
=22÷7(35+3.5)^2
=22÷7×38.5^2
=3.14×1482.25
=465426.5m^2
area of path=465426.5m^2-154m^2
=465272.5m^2