Question

diametre=7/2cm what is radius? height=6cm. then find L.S.A of cylinder​

Answer 1

HEY!!! HERE IS UR ANSWER

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Lateral surface area of a cylinder = $2\pi rh$

Diameter = 2r = 2 × 7/2

radius = 7/2 ÷ 2

Radius = 7/4

Height = 6cm

LSA = 2 × 22/7 × 7/4 × 6

LSA = 11 × 3 × 2

Lateral surface area of cylinder = 66cm²

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HOPE IT HELPS !!!

Answer 2

Answer:

Given diameter of the cylinder = 7/2 cm

Therefore radius of the cylinder = diameter/2 = 7/4 cm

Given height of the cylinder = 6 cm

Therefore

Curved surface area of the cylinder = 2πrh

                                                            = 2π(7/4)(6)

                                                            = 65.94 m² (nearly)

Taking π = 3.14