Question

A cylindrical container has base radius 8 cm and height 42 cm find the curved surface area and total surface area of a cylinder

Answer 1

2513.27412cm sqe
and curved surface area = 8440.3200

Answer 2

Answer:

$radius \: (r) = 8 \: cm \\ height \: (h) = 42 \: cm$

CSA

$= 2\pi rh \\ = 2 \times \frac{22}{7} \times 8 \times 42 \\ = 2 \times 22 \times 8 \times 6 \\ = 2116 \: {cm}^{2}$

TSA

$= 2\pi r(r + h) \\ = 2 \times \frac{22}{7} \times 8(8 + 42) \\ = 2 \times \frac{22}{7} \times 8 \times 50 \\ = \frac{17600}{7} \\ = 2514.28 \: {cm}^{2}$

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