The height of a cone and its base radius are 4 cm and 3 cm respectively. Then its slant height is ……… cm. A) 4
The height of a cone and its base radius are 4 cm and 3 cm respectively. Then its slant height is ……… cm.
A) 4
B) 3
C) 5
D) 6
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Correct option is: C) 5
Given that height of the cone is h = 4 cm and radius of the cone is r = 3 cm.
\(\because\) \(l^2 = r^2 + h^2 \)
= \(3^2+4^2 = 9+ 16 = 25 = 5^2\)
\(\because\) l = 5 cm
Hence, the slant height of the cone is 5 cm.
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