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2015-12-09T11:36:31+05:30

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As unit of circumference can't be squared, so considering circumference = 132 cm .
now, circumference = 2π r = 132
                                 ⇒ r= 66/π
                                 ⇒r = 21 cm
length of trunk, h = 1.5 m = 1.5 ×100 = 150 cm
volume of timber = π r² h
                            = (22/7) ×(21)²×150
                            =207900 cm³
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