VIII. A well of diameter 150 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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Given, the diameter of the well (d) = 150 cm. Let radius and diameter of the parapet is R respectively. Since, length of the outer edge of the parapet = 660 cm.
Therefore,R=105 R = 210 cm.
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