Question

The Volume of a cylinder is 448 cm cube and its height is 7 cm find the curved surface area and total surface area of the cylinder ​

Answer 1

Step-by-step explanation:

Volume of cylinder = πr2h

448 = 22/7*r2*7

448/22 = r2

r2 = 20.363636

r = 4.5 cm

CSA = 2πrh = 2*22/7*4.5*7 = 44*4.5 = 198cm2

TSA = 2πrh+2πr2 = 198+2*22/7*4.5*4.5

= 198+891/7

= 198+127.28 = 325.28cm2

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Answer 2

Step-by-step explanation:

Step-by-step explanation:volume of cylinder = 2πrh

Step-by-step explanation:volume of cylinder = 2πrh 448 =22\7×r^2×7

Step-by-step explanation:volume of cylinder = 2πrh 448 =22\7×r^2×7r^2=20.363636

Step-by-step explanation:volume of cylinder = 2πrh 448 =22\7×r^2×7r^2=20.363636r=√20.363636

Step-by-step explanation:volume of cylinder = 2πrh 448 =22\7×r^2×7r^2=20.363636r=√20.363636r=4.5

Step-by-step explanation:volume of cylinder = 2πrh 448 =22\7×r^2×7r^2=20.363636r=√20.363636r=4.5csa=2πrh=2×22\7×4.5×7

Step-by-step explanation:volume of cylinder = 2πrh 448 =22\7×r^2×7r^2=20.363636r=√20.363636r=4.5csa=2πrh=2×22\7×4.5×7 44×4.5

Step-by-step explanation:volume of cylinder = 2πrh 448 =22\7×r^2×7r^2=20.363636r=√20.363636r=4.5csa=2πrh=2×22\7×4.5×7 44×4.5 198cm

• Step-by-step explanation:volume of cylinder = 2πrh 448 =22\7×r^2×7r^2=20.363636r=√20.363636r=4.5csa=2πrh=2×22\7×4.5×7 44×4.5 198cmtsa=2πrh+2πr^2
• 198+127.28
• 325.28cm^2