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Surface area of a cylinder
Surface area of a cylinder
Theory
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1)
Find the lateral surface area of right circular cylinder, if its base has a radius of 14cm and its height is 15cm.
1322 cm²
1324 cm²
1326 cm²
1320 cm²
2)
The curved surface area of a right circular cylinder of height 14 cms is 88 sq.cm. Find the diameter of the cylinder.
0.5cm
1.0cm
1.5cm
2cm
3)
Find lateral surface area of cylinder with height 9 ft.
332 ft²
none of the above
156 ft²
232 ft²
4)
A cylinder has radius 4cm and height 6cm. Find curved surface area.
150.79cm²
155cm²
79cm²
125.24cm²
5)
What is the formula to calculate area of curved surface of a cylinder?
π r²h
2π rh
2π rh + 2π r²
π r²
6)
What is the formula for the lateral surface area of a cylinder?
A = 2πr
A = 2πr(r + h)
A = 2πrh
A = πr^2
7)
If the radius of a cylinder is 4 units and its height is 10 units, what is its lateral surface area?
40π square units
160π square units
80π square units
20π square units
8)
The total surface area of a cylinder includes the area of the two bases. True or False?
True
False
9)
If the radius of a cylinder is doubled while keeping the height constant, how does its lateral surface area change?
It quadruples.
It doubles.
It becomes half.
It remains the same.
10)
If the height of a cylinder is halved while keeping the radius constant, how does its total surface area change?
It remains the same.
It halves.
It becomes one-fourth.
It doubles.