Question

A joker cap is in the for of right circular cone of base radius 7 cm and slant height is 25 cm find area of cap
Only need ans

Answer 1

Surface Areas and Volume

To solve this type of problem, use the formula for the Curved surface area of the cone.

The formula of Curved surface area of the cone is: $\pi{rl}$

Where, the value of $\pi$ is 22/7 or 3.14, $r$ is the radius and $l$ is the slant height of a cone.

Given that, the radius of a cap is 7cm and slant height of a cap is 25cm.

Since the cap is in the shape/form of a right circular cone.

We know that,

Curved surface area of cone = $\pi{rl}$

By plugging the given values in the formula, we get the following results:

$\implies Area = \dfrac{22}{7} \times 7 \times 25 \\ \\ \implies Area = 22 \times 25 \\ \\ \implies \boxed{Area = 550}$

Hence, the area of the cap is 550cm².

Answer 2

Question:-

A joker cap is in the for of right circular cone of base radius 7cm and slant height is 25cm. Find the area of cap.

Given:-

• Radius = 7cm.
• Slant height = 25cm.

To Find:-

• The area of cap.

Solution:-

• Base radius (r) = 7cm.
• Slant height (l) = 25cm.

We know that,

${ \boxed{ \sf \large \pink{Curve \: Surface \: Area = \pi rl }}}$

$\sf \large \therefore Curve \: Surface \: Area \: of \: a \: cap = \frac{22}{{ \cancel{{7} }}} \times {{ \cancel{7}}} \times 25 = 550cm {}^{2} .$

Answer:-

${ \boxed{ \sf \large \green{ \therefore Area \:of \: a \: cap = 550cm {}^{2}. }}}$

Hope you have satisfied. ⚘