the radius of a cone is 3cm and vertical height is 4cm.find the area of the curved surface
[ans. 62.85 cm^2]
solve and find the answer given below
Answers
Answered by
4
Step-by-step explanation:
Curved surface area of a cone = πrl, where l = √ (r2 + h2 ).
Given r = 4 cm and h = 3 cm.
l = √ (42 + 32 ) = 5 cm.
Curved surface area of a cone
= (22/ 7) x 4 x 5
= 62.85 cm2 .
Answered by
4
Answer:
Given
r=3cm
h=4cm
Solution
First to find length
l²=r²+h²
l²=9²+16²
l²=3²+4²
l=3+2
l=5
Curved surface area = pierl
=22/7×3×5
=62.85 cm
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