If radius of base and height of a right circular cone are respectively 21cm and 28cm then the curved surface area of the cone is ?
Answers
Answered by
10
given:-
base = 21cm
height = 28cm
curved surface area of the cone = 2πrh
= 2 × 22/7 × 21 × 28
= 44 × 3 × 28
= 3696cm²
base = 21cm
height = 28cm
curved surface area of the cone = 2πrh
= 2 × 22/7 × 21 × 28
= 44 × 3 × 28
= 3696cm²
alokraj1singh:
Thanks☺️☺️
Worng
It is not a cylinder it a cone
Answered by
1
Answer:
idkok is absolutly wrong
Step-by-step explanation:
As CSA of cone = pie*r*l
r=21
h=28
l=root 21sq +28sq
=35
22/7*21*35
2310cm2
mark brainliest
Similar questions