## 2. Find the curved surface area and the total surface area of the cylinder for which : h = 32 cm and r = 10.5 cm

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Step-by-step explanation:height=32cm

radius=10.5cm

curved surface area of the cylinder =2πrh (formula)

curved surface area of the cylinders =2×22/7×10.5×32

=2×22/7 (7 cut ho gaye hai) 10.5 (se cut ho gaye hai) ×32

=2×22×15×32

=21120cm 2

Total surface area of the cylinders=2πr(r+h) (formula)

=2×22/7×10.5(10.5+32)

=2×22/7 (7 cut ho gaye hai) 10.5 (se cut ho gaye hai) (15+32)

=2×22×15(15+32)

=660(15+32)

=600×47

=28200

Answer:A

≈

2803.87

cm²

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