Question

find the curved surface area and the total surface area of a cylinder whose radius is 3.5 m and height is 6 m
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Answer 1

Answer:

Curved surface area = 132 m²

Total surface area = 209 m²

Step-by-step explanation:

Radius = 3.5 m

Height = 6 m

Curved surface area = 2$\pi$rh

= 2*(22/7)*3.5*6

= 2*22*0.5*6

= 132 m²

Total surface area = curved surface area + 2$\pi$r²

= 132 + 2*(22/7)*(3.5)²

= 132 + 2*22*1.75

= 132 + 77

= 209 m²

Answer 2

Answer:

The curved surface area and the total surface area of a cylinder are 131.84 m² and 208.90 m².

Step-by-step explanation:

The cylinder radius is 3.5 m and height is 6 m.

The curved area of the cylinder= (2πrh) unit² = {2×π×(3.5)×6} m² = 131.84 m².

The surface area of the cylinder= (2πrh+2πr²) unit² =(131.94+2×π×3.5²) m²= (131.94+76.96) m² = 208.90 m².

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