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A bucket in the shape of a frustum has radii 22 cm and 12 cm and height 24 cm. The slant height is
A30 cm
B20 cm
C26 cm
D15 cm
Answer & Solution
Correct answer: C. 26 cm
1. l squared = h squared + (R - r) squared = 576 + 100 = 676.
2. l = 26 cm.
3. Hence 26 cm.
_Source: NCERT Class 10 Mathematics, Ch 12 "Surface Areas and Volumes", §12.4_
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