Two cones have their height in the ratio 1:3and radii 3:1 .what is the ratio of their volume.
Answers
Answered by
0
Given - h1:h2=1:3
r1:r2 =3:1
Volume of 1 cone (v1)/volume of 2nd cone (v2)=
1/3×π×r1×r1×h1
=-----------------
1/3×π×r2×r2×h2
1/3×π×3×3×1
= -----------------
1/3×π×1×1×3
27π
= ------
9π
On dividing
1
= ----
3
V1 3
= ---- = -----
V2 1
= V1:V2 = 3:1
That's solve
r1:r2 =3:1
Volume of 1 cone (v1)/volume of 2nd cone (v2)=
1/3×π×r1×r1×h1
=-----------------
1/3×π×r2×r2×h2
1/3×π×3×3×1
= -----------------
1/3×π×1×1×3
27π
= ------
9π
On dividing
1
= ----
3
V1 3
= ---- = -----
V2 1
= V1:V2 = 3:1
That's solve
Similar questions