ICSE Class 8 Answered
a circular cylinder is 50cm hight and holes 140 liters .find in centimetres to the nearest centimetre the internal radius
Asked by chaudharysn165 | 15 Jan, 2019, 08:55: PM
Expert Answer
let r be radius and h be height of cylinder
Cylinder volume = π r2 h = 140 litre
π r2 × 50 = 140×1000 cm3
r2 = (140×1000×7)/(22×50) ≈ 891 ; hence radius r = 
Answered by Thiyagarajan K | 16 Jan, 2019, 08:17: AM
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