Question

a rectangular sheet of paper 44 cm long and 16 cm broad is rolled along its length to form a cylinder what is the radius of the cylinder and what is its volume ?

Answer 1

if the sheet is rolled to make a cylinder
the length will become the circumfere of the circle so

44 = 2 / pi/ r
44 = 2 × 22/7× r
44 = 44 / 7 × r
r = 7

volume of a cylinder =2 /pi/ r2 h
2 × 22/7 ×7×7 × 16
= 4928 cm3

Answer 2

ⁱᶠ ᵗʰᵉ ˢʰᵉᵉᵗ ⁱˢ ʳᵒˡˡᵉᵈ ᵗᵒ ᵐᵃᵏᵉ ᵃ ᶜʸˡⁱⁿᵈᵉʳ 
ᵗʰᵉ ˡᵉⁿᵍᵗʰ ʷⁱˡˡ ᵇᵉᶜᵒᵐᵉ ᵗʰᵉ ᶜⁱʳᶜᵘᵐᶠᵉʳᵉ ᵒᶠ ᵗʰᵉ ᶜⁱʳᶜˡᵉ ˢᵒ 

₄₄ = ₂ / ᵖⁱ/ ʳ 
₄₄ = ₂ × ₂₂/₇× ʳ
₄₄ = ₄₄ / ₇ × ʳ
ʳ = ₇

ᵛᵒˡᵘᵐᵉ ᵒᶠ ᵃ ᶜʸˡⁱⁿᵈᵉʳ =₂ /ᵖⁱ/ ʳ₂ ʰ
₂ × ₂₂/₇ ×₇×₇ × ₁₆
= ₄₉₂₈ ᶜᵐ₃


ˢʰⁱᵛᵃⁿᵍⁱ ˢⁱ ˢᵒ ˢʷᵉᵉᵗ ᶠʳⁱend of my