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The lateral surface area of a right circular cylinder with base diameter 28 cm and height 20 cm is
- a)1760 cm2
- b)1280 cm2
- c)1780 cm2
- d)1000 cm2
Correct answer is option 'A'. Can you explain this answer?
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The lateral surface area of a right circular cylinder with base diamet...
Calculation of lateral surface area of a cylinder
To find the lateral surface area of a cylinder, we use the formula:
Lateral Surface Area = 2 * π * r * h
Where:
r = radius of the base of the cylinder
h = height of the cylinder
Given information
Base diameter = 28 cm
Radius (r) = Diameter/2 = 28/2 = 14 cm
Height (h) = 20 cm
Calculation
Lateral Surface Area = 2 * π * 14 * 20
Lateral Surface Area = 2 * 3.14 * 14 * 20
Lateral Surface Area = 1760 cm²
Therefore, the lateral surface area of the given right circular cylinder is 1760 cm², which matches with option 'A'.
To find the lateral surface area of a cylinder, we use the formula:
Lateral Surface Area = 2 * π * r * h
Where:
r = radius of the base of the cylinder
h = height of the cylinder
Given information
Base diameter = 28 cm
Radius (r) = Diameter/2 = 28/2 = 14 cm
Height (h) = 20 cm
Calculation
Lateral Surface Area = 2 * π * 14 * 20
Lateral Surface Area = 2 * 3.14 * 14 * 20
Lateral Surface Area = 1760 cm²
Therefore, the lateral surface area of the given right circular cylinder is 1760 cm², which matches with option 'A'.
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The lateral surface area of a right circular cylinder with base diameter 28 cm and height 20 cm isa)1760 cm2b)1280 cm2c)1780 cm2d)1000 cm2Correct answer is option 'A'. Can you explain this answer?
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