A solid cylinder has total suface area of 462cm^2.its curved surface area is one third of its total surface area.find the radius and height of the cylinder.
Answers
Answered by
2
Answer:
Step-by-step explanation:
Attachments:
Answered by
4
Answer:
!!
Step-by-step explanation:
Curved surface area = 1/3 x total surface area
We know that,
Total surface area = 462
Curved surface Area = 1/3 x 462
⇒ 2π rh = 154
⇒ 2 x 3 . 14 x 2h² = 154
⇒ h² = 154 x 7 / 2 x 22 x 2
⇒ 49 / 4
⇒ h = 7 / 2cm
⇒ r = 2h
⇒ r = 2 x 7 / 2
⇒ r = 7cm
тнαηк үσυ
sangeshganesh123:
where are staying
Similar questions