Question

what is the formula of the surface area of a cylinder with a radius of 3.5cm and a height of 40cm

Answer 1

Answer:

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Step-by-step explanation:

A≈956.61cm²

r Radius

3.5

cm

h Height

40

cm

Answer 2

Question :-

• Find the surface area of a cylinder with a radius of 3.5 cm and height 40 cm.

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Given :-

• Radius of cylinder = 3.5 cm
• Height of cylinder = 40 cm

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To find :-

• Surface area of cylinder

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Formula to be used :-

• Surface area of cylinder = 2πr(r + h)

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Solution :-

T.S.A of cylinder = 2 × 22/7 × 3.5 ( 3.5 + 40)

→ T.S.A = 44/7 × 3.5 ( 43.5)

→ T.S.A = 44/7 × 152.25

→ T.S.A = 6699/7

→ T.S.A = 956.61

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Therefore, Surface area of cylinder = 957 cm².