1. find curved surface area and total surface area of the cylinder for which :
(i) h = 16 cm ,r = 10.5 cm
(ii) h = 20 cm ,r = 14 cm
(iii) h = 5 cm, r 21 cm
(iv) h = 1 m, r = 1.4 cm
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Answer:
A≈1748.3cm²
r Radius
10.5
cm
h Height
16
cm
A≈2990.8cm²
r Radius
14
cm
h Height
20
cm
A≈3430.62cm²
r Radius
21
cm
h Height
5
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