Question

Find the curved surface area of a right circular cone whose slant height is 10 cm and Base is 7cm. ​

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Answer 1

l l Correct Question l l

Find the curved surface area of a right circular cone whose slant height is 10 cm and Base radius is 7cm.

Given:

• Slant height, l = 10 cm

• Base radius of cone,r = 7 cm

To find out:

Find the Curved surface area of a right circular cone?

Formula used:

Curved surface area = πrl

Solution:

Curved surface area = πrl

= 22/7 × 7 × 10

= 22 × 10

= 220 cm²

Hence, the Curved surface area of given cone is 220 cm².

Additional information:

• Total surface area of cone = π × r ( l + r )

• volume of cone = 1/3 × π × r² × h

• Surface area of sphere = 4 × π × r²

• Volume of sphere = 4/3 × π × r³

Answer 2

$\huge \underline \mathfrak\pink {Question}$

Find the curved surface area of a right circular cone whose slant height is 10 cm and Base is 7cm.

$\huge \underline \mathfrak\pink {Answer}$

Given :-

• Height = 7cm

• Radius = 10 cm

Find:-

• The curved surface area of the cone

Solution :-

As we know ,curved surface area

= $\pi×radius ×length$

= $\frac {22}{7}× 7 × 10$

= 220 cm square

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