The radii of two circular faces of the frustum of a cone of height 21 – McqOptions

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1.	The radii of two circular faces of the frustum of a cone of height 21 cm are 3 cm and 2 cm respectively. What is the volume of the frustum of the cone in cm3(π = 22/7)?
A.	418
B.	286
C.	154
D.	345
Answer» B. 286

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