A tall smoothie glass shaped like a frustum has end radii 4 cm and 3 cm and a height of 21 cm. It is filled to the brim. Find the volume of smoothie, in cm³. (Take \π = 22/7 .)

Question

Accepted Answer

814. V = 1/3 × 22/7 × 21 × (16 + 9 + 12) = 22 × 37 = 814 cm³. 550 leaves out the Rr term (25 instead of 37); 2442 forgets the 1/3 ; 22 uses (R - r)^2 = 1 in place of R^2 + r^2 + Rr .

A tall smoothie glass shaped like a frustum has end radii 4 cm and 3 cm and a height of 21 cm. It is filled to the brim. Find the volume of smoothie, in $cm^{3}$ . (Take $π = \frac{22}{7} .$ )

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More Class 10 Frustum of a Cone practice

A tall smoothie glass shaped like a frustum has end radii 4 cm and 3 cm and a height of 21 cm. It is filled to the brim. Find the volume of smoothie, in cm3. (Take π=722​.)

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Frustum of a Cone practice

A tall smoothie glass shaped like a frustum has end radii 4 cm and 3 cm and a height of 21 cm. It is filled to the brim. Find the volume of smoothie, in $cm^{3}$ . (Take $π = \frac{22}{7} .$ )