Question

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

base radius is 7cm​

Answer 1

Given :

⬤ Slant Height of Right Circular Cone is 10 cm.

⬤ Base Radius of Right Circular Cone is 7 cm.

To Find :

⬤ Curved Surface Area of Cone .

Formula Used :

$\bf[\:{Curved \: Surface \: Area \: of \: Cone = \pi{r}l}\:]$

• r = radius
• l = slant height

Solution :

According to the Formula :-

πrl

22/7 × 7 × 10

22 × 10

220

Therefore , Curved Surface Area of Right Circular Cone is 220 cm² .

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Related Formulas :

• Curved Surface Area of Cone = πrl
• Total Surface Area of Cone = πr (r + l)
• Volume of Cone = ⅓πr²h
• Total Surface Area of Cylinder = 2πr (r + h)
• Curved surface area of Cylinder = 2πrh
• Volume of Cylinder = πr²h

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Answer 2

Answer:

A≈373.85cm²

r Radius

7

cm

l Slant height

10

cm