the ratio between the curved surface area and the total surface area of a right circular cylinder is 1:2 find the ratio b/w the height and radius of the cylinder
Answers
Answered by
1
HELLO!!
ANSWER:
r : h = 1 : 1
EXPLANATION:
CSA of cylinder = 2πrh sq.units
TSA of cylinder = 2πr(h+r) sq.units
2πrh/2πr(h+r) = 1/2
4πrh = 2πr(h+r)
4h = 2(h+r)
h/h+r = 2/4
h+r/h = 4/2
h/h + r/h = 4/2
1 + r/h = 2
r/h = 1
r : h = 1 : 1
HOPE MY ANSWER IS RIGHT!!
ANSWER:
r : h = 1 : 1
EXPLANATION:
CSA of cylinder = 2πrh sq.units
TSA of cylinder = 2πr(h+r) sq.units
2πrh/2πr(h+r) = 1/2
4πrh = 2πr(h+r)
4h = 2(h+r)
h/h+r = 2/4
h+r/h = 4/2
h/h + r/h = 4/2
1 + r/h = 2
r/h = 1
r : h = 1 : 1
HOPE MY ANSWER IS RIGHT!!
Similar questions