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Subjects
Mathematics State Board
Class 10
Mensuration
Surface Area of a Sphere, Hemisphere, Hollow Hemisphere and Frustum of a cone
6.
Two marks example problem IV
Exercise condition:
2
m.
The slant height of a frustum of a cone is
5
\(cm\) and the radii of its ends are
4
\(cm\) and
1
\(cm\). Find its curved surface area.
Answer
:
The curved surface area of a frustum of a cone \(=\)
\(cm^2\)
[
Note
: Enter the answer upto two decimal places.]
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