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. [ = ]
Answers
Answered by
3
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.
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.
Important Information:
- 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
I hope it will help you.
Regards.
Answered by
1
Answer:
Step-by-step explanation:Radius of cone is r=7cm
Slant height l=25cm
Curved surface area of cone is given as 2πrl
2×
7
22
×7×25
50×22=1100cm
2
Area for 12 such sheets =12×1100=13200cm
2
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