Question

Find the weight of the cylinder of radius 10.5cm and height 60cm, if the material of the cylinder weighs 5g/cm3, find the volume and weight?

Answer 1

Given

• Radius (r) = 10.5cm
• Height (h) = 60cm
• Weight of 1cm³ = 5gms

To find

• Volume (v)
• Weight (W)

Solution

• r = 10.5cm = ¹⁰⁵⁄₁₀cm = ²¹⁄₂cm
• h = 60cm
• Volume = πr²h
• Volume = ²²⁄₇ × ²¹⁄₂ × ²¹⁄₂ × 60
• Volume = 346.5 × 60
• Volume = 20790

☯ Volume of the cylinder = 20790cm³

• Weight of 1cm³ = 5gms

• Weight of 20790cm³ = ?

• Weight of 20790cm³ = 20790 × ⁵⁄₁₀₀₀

• Weight of 20790cm³ = 1039.5Kg

☯ Weight of 20790cm³ = 103.95Kg

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