Question

16. A well of diameter 140 cm has a stone parapet around it. If the length of the outer edge of the
parapet is 616 cm, find the width of the parapet.
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Answer 1

Answer:

Let the width of the parapet be w

Then it's length = circumference= 2×(22/7/)(70+w)=616

70+w=616×7/(22×2)=98

w=98-70=28 Ans