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The trunk of a tree has diameter 30 cm. ...

The trunk of a tree has diameter 30 cm. During the following year, the circumference grew 6 cm.
(i) Approximately, how much did the tree's diameter grow?
(ii) What is the percentage increase in area of the tree's cross-section?

Text Solution

Verified by Experts

The correct Answer is:
(i) `6/pi cm`
(ii) `40 / pi `
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