Mensuration Practice Test 8

Question : 6 of 40

Marks: +1, -0

The diameter of the base of a right circular cone is 7 cm and its slant height is 10 cm What is its lateral surface area?

Solution:

Diameter of the base the right circular cone = 7 cm
Radius = r =

7/2

cm
Slant height = 10 cm
Lateral surface area = πrl
=

{22}/7 × 7/2 × 10

110 cm^2

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