The total surface area of a solid right circular cylinder is 231 cm square, its curved surface area is 2/3rd of the total surface area. Find the radius of the base and height.
Answers
Answered by
2
2πr(r+h)=231
2πr×r+2πrh=231
And, 2πrh=462/3=154
So,putting value of 2πrh
2πr×r=231-154
r×r=77×7/44
r×r=539/44
r=√539/√44.
2πr×r+2πrh=231
And, 2πrh=462/3=154
So,putting value of 2πrh
2πr×r=231-154
r×r=77×7/44
r×r=539/44
r=√539/√44.
Similar questions