a well of diameter 150 cm has a 30 cm wide parapet running around it find the area of the parapet.
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radius of the well=150/2
=75cm
circumference of the well=length of the parapet=2πr
=2×3.14×75
=471cm
area of the parapet=471×30
=14130sq cm
=75cm
circumference of the well=length of the parapet=2πr
=2×3.14×75
=471cm
area of the parapet=471×30
=14130sq cm
abhishek479:
wrong
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