Given - πr2 = 154m2 R = 154×7/22 = 7m 1/3× πr2h= 1232 m3 h= 1232×3/154 h= 24m now – l2 = r2+h2 =49+576 =625 l = 25m Area of the canvas required to build the tent = πrl Which will equal to the area of the rectangular canvas. 22/7×7×25 = 11×length of the canvas length of the canvas =50m
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