Question

Joker’s cap is in the form of a right circular cone of base radius 7 cm and the slant height is 25 cm. find the area of the cap. [ = ]

Answer 1

Answer:

704cm²

Step-by-step explanation:

TSA of  cone =(πrl)+(πr²)

=>( 22/7 * 7 * 25 ) + (22/7 * 7*7)

=> (22*25) + (22*7)

=> 550 + 154

=> 704cm²

Answer 2

Given:-

• A Joker's cap is in the form of right circular cone.
• The base radius of cone is 7 cm.
• The slant height (L) of cone is 25 cm.

To Find:-

• Find the area of the cap ?

Solution:

• The base of radius of cone is 7cm.
• The slant height of cone is 25cm.

We know that,

Curved Surface area of cone = πrl

• r = 7 cm
• l = 25 cm

=> πrl

=> 22/7 × 7 × 25

=> 22 × 25

=> 550 cm²

Hence, find the area of the cap is 550cm².

Some Important:-

• Right circular cone:-
• h = height of cone
• r = Radius of cone
• s = slant height

• Volume = 1/3πr²h
• Lateral surface area = πr √r²+h²
• Total surface area = πr² + πr √r²+h²