curved surface area of cylinder is
Answers
Answer:
The radius 'r' of a cylinder is the radius of its base. Now, the area of the rectangle = length × breadth. 2πr is the circumference of the circle and h is the height. Area of the curved surface will be = 2πr × h = 2πrh.
Step-by-step explanation:
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Solution :-
Curved surface area of cylinder = 2 π r h
Other formulaes related to Cylinder :-
Total surface area of cylinder = 2 π r ( r + h )
Volume of cylinder = π r^2 h
Formulaes of Cuboid :-
Lateral surface area = 2 h ( l + b )
Total surface area = 2 ( lb + bh + hl )
Volume = l × b × h
Formulaes of Cube :-
Lateral surface area = 4 l^2
Total surface area = 6 l^2
Volume = l^3
Formulaes of Cone :-
Slant height (l) = √h^2 + √r^2
Curved surface area = π r l
Total surface area = π r ( r + l )
Volume = 1/3 × π r^2 h
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Some sums and their solutions related to Curved surface area of cylinder
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★ If the radius of the cylinder is 7 cm and height is 4 cm then find the curved surface area of cylinder.
C.S.A. of cylinder = 2 π r h
= 2 × 22/7 × 7 × 4
= 2 × 22 × 4 (cancelled 7)
= 176 sq.cm
The curved area of cylinder is 176 sq.cm
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★ Find the curved surface area of a cylinder with radius 5 cm and height 28 cm
C.S.A. of cylinder = 2 π r h
= 2 × 22/7 × 5 × 28
= 2 × 22 × 5 × 4
= 880 sq.cm
The curved area of cylinder is 880 sq.cm