Question
The sum of the radius and height of a cylinder is 19m.
The total surface area of the cylinder is 1,672 m² . What is the volume of the cylinder?Solution
Surface area of the cylinder = 1,672 m². ⇒ 2 πr ( r + h ) = 1,672 m² ⇒ 2 × 22/7 × r × 19 = 1,672 m² ⇒ r = (1672 × 7 )/(2 × 22 × 19) = 14 ∴ h = 19 - 14 = 5m ∴Volume of the cylinder = πr² h = 22/7 × 14 ×14 × 5 = 3,080m³
More Mensuration Questions
(1/5)(40% of 800 – 120) = ? × 5
Determine the value of 'p' in following expression:
720 ÷ 9 + 640 ÷ 16 - p = √121 X 5 + 6²- 7(23 × 8) – (13 × 5) + 67 =? x 6         Â
Evaluate
64 ÷ 4 of 5 of [10 ÷ 5 of (9 ÷ 3 + 2)] + (9 ÷ 3 + 1)
?2 = (1035 ÷ 23) × (1080 ÷ 24)Â
- Evaluate: 156 ÷ 12 × 4 + 180 – 40% of 350
520% of 360 – 12% of 400 = ? x 4
- What will come in place of (?) in the given expression.
(⅗ of 450) – (⅖ of 300) = ? 45% of 1020 + ?% of 960 = 747
345 × 20 ÷ 4 + 28 + 60 = ?Â
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