Question

Find circular surface area of a cylinder whose radius is 7 cm and height is 14 cm

Answer 1

Answer:

615.752

Step-by-step explanation:

radius = 4cm

height = 14cm

circular surface area =2 $\pi$rh

= 2 *22/7*7*14

= 615.752

Answer 2

Step-by-step explanation:

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Given,

Radius = 7cm

Height = 14cm

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=> Curved Surface Area of Cylinder = 2πrh

=> $2 \times \frac{22}{7} \times 7 \times 14$

=> $2 \times 22 \times 14$

=> $44 \times 14$

=> $616 \: cm^{2}$

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=> Total Surface Area of Cylinder = 2πr(r+h)

=> $2 \times \: \frac{22}{7} \times 7(7 + 14)$

=> $\frac{44}{7} \times 7 \times 21$

=> $44 \times 21$

=> $924 \: cm^{2}$

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