The volume of a cylinder of height8cm is1232cm .Find the curved surface area and the total surface area
Answers
Answered by
2
Given: Volume = 1232 cm³ , Height = 8 cm
Volume = πr²h
1232 = 22/7×r²×8
1232×7 = 22×8×r²
8624 = 176×r²
8624/176 = r²
49 = r²
radius = 7
Curved surface area = 2πrh
= 2×22/7×7×8
= 352 cm²
Total surface area = 2πr(r+h)
=2×22/7×7(7+8)
=660 cm²
Similar questions