1.

the volume of a right circular cone is 808.5 cm3and its height is 21cm find the circumference of the base​

Answer»

LET RADIUS be x

Volume of CYLINDER = 808.5

pi× R ^ 2 × H = 808.5

3.14 × r^2 × 21 = 808.5

65.94 × r ^2 = 808.5

r ^ 2 = 808.5 / 65.94

r = root 12.26

r = 3.5



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