the volume of a right circular cylinder is 448(22/7)cm square and height 7 cm. find the lateral surface area and total surface area.
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Edge of the given cube,
We have to find lateral and total surface area
Lateral surface area,
Total surface area,
The lateral surface area of the cube is and its total surface area is.
hope this similar example will help you
We have to find lateral and total surface area
Lateral surface area,
Total surface area,
The lateral surface area of the cube is and its total surface area is.
hope this similar example will help you
Answered by
13
given,
volume of cylinder = 448( 22/7 ) cm^2
height = 7cm
volume of cylinder = πr^2h
448 ( 22/7 ) = 22/7 × r^2 × 7
448 (22/7 ) = 22 × r^2
64×22 = 22× r^2
1408 = 22× r^2
r^2 = 1408/22
r^2 = 64
r = √64
r = 8 cm
now,
l.S.A. = 2πrh
= 2×22/7 × 8×7
= 2 × 22×8
= 352 cm^2
T.S.A = 2πr(r+h)
= 2 × 22/7 × 8 ( 8+7)
= 754.28cm^2
I hope this will help u
volume of cylinder = 448( 22/7 ) cm^2
height = 7cm
volume of cylinder = πr^2h
448 ( 22/7 ) = 22/7 × r^2 × 7
448 (22/7 ) = 22 × r^2
64×22 = 22× r^2
1408 = 22× r^2
r^2 = 1408/22
r^2 = 64
r = √64
r = 8 cm
now,
l.S.A. = 2πrh
= 2×22/7 × 8×7
= 2 × 22×8
= 352 cm^2
T.S.A = 2πr(r+h)
= 2 × 22/7 × 8 ( 8+7)
= 754.28cm^2
I hope this will help u
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