Question
An iron pillar consists of two parts: one in the shape
of a right circular cylinder and the other in the shape of a right circular cone. The radius of both the cylinder and the cone is 28 cm. The height of the cylindrical part is 14 cm, which is twice the height of the conical part. What is the volume of the iron pillar?Solution
Volume of the cylinder part =22/7*28*28*14 = 34496 cm³ Volume of the cone part =(22/7*28*28*7)/3 = 5749.33 cm³ So total volume of the iron pillar Is = 34496 + 5749.33 = 40245.33 cm³
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