the lateral surface on the total surface area of a cylinder with base radius 7m and height 9m are respectively
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Surface Areas and Volumes
Volume of Cube, Cuboid and Cylinder
Find the lateral surface ar...
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Asked on December 26, 2019 byOorja Londhe
Find the lateral surface area and the total surface area of a cylinder with base radius 7 m and height 9 m
A
396 m2, 704 m2
B
704 m2, 396 m2
C
396 m, 704m
D
704m, 396m
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ANSWER
Given s= 7m, h=9 m
Lateral surface area = Area of the curved surface =2πrh=2×722×7m×9m=396m2
Total surface area = Area of curved surface + Area of two circular surfaces
=2πrh+2πr2=396m2+2×722×7m×7m=(396+308)m2=704m2
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Answer:
lateral surface area=396m2
total surface area=704m2
Step-by-step explanation:
given base radius of the cylinder=7m
height of the cylinder=9m
lateral surface area of cylinder=2πrh
=2(22/7)(7)(9)
=396m2
total surface area of cylinder=2πr(h+r)
=2(22/7)(7)(7+9)
=704m2