Question

फार्मूला ऑफ होलो सिलेंडर​

Answer 1

Answer:

Step-by-step explanation:

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Answer 2

Answer:

Formulas of relation between inner radii , outer radii and thickness of Hollow cylinder , formula of Volume of hollow cylinder , inner and outer curved surface area...

Step-by-step explanation:

A cross section of it perpendicular to the length (or height) is the portion bounded by two concentric circles. Now,

If R, r are the outer and inner radii respectively and t is the thickness then R = r + t, r = R - t, t = R - r.

The volume of the material = π(R2 - r2) × Height.

The inner curved surface area = 2πr × Height,

The outer curved surface area = 2πR × Height.

Hope it will helpful to you...!!!