Question

if the height and radius of cylinder are 35cm and 14cm respectively then fund its curved surface area​

Answer 1

Answer:

total surface area=2π(14×14)+2π14×35

total surface area=2π(14×14)+2π14×35 =4308.08 sq. cm

total surface area=2π(14×14)+2π14×35 =4308.08 sq. cmcurved surface area=3077.2 sq.cm

total surface area=2π(14×14)+2π14×35 =4308.08 sq. cmcurved surface area=3077.2 sq.cmtherefore ratio=1.5:1=3:2 (ans)

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Answer 2

Answer:

980π cm² (or) 3077.2 cm²

Step-by-step explanation:

GIVEN :-

• Height = 35 cm
• Radius = 14 cm

TO FIND :-

• Curved Surface Area of the cylinder

FORMULAE TO KNOW BEFORE SOLVING :-

For a cylinder with radius 'r' & height 'h' ,

its Curved Surface Area = 2πrh

SOLUTION :-

[NOTE : Here I'll be taking value of π = 3.14]

$CSA = 2\pi r h =2 \times \pi \times 14 \times 35 = 980\pi \:cm^2$ ≈ 3077.2 cm²