if the radius of the cylinder is 7cm if it's volume is 2002cm3 find it's height and total surface area
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Answered by
110
VOLUME OF CYLINDER=2002 CM^3
HEIGHT OF CYLINDER = ?
RADIUS OF CYLINDER = 7 CM
V.OF CYLINDER =PIE R^2 H
2002=22/7×7×7×H
2002=7 WILL CANCEL OUT THEN
2002=22×7×H
2002=154×H
2002/154=H
H=13 CM
THEN THE TOTAL SURFACE AREA OF CYLINDER = 2PIE R (H+R)
= 2×22/7×7 (13+7)
=THEN 7 WILL CANCEL OUT
=22×2 (13+7)
=44×20
= 880 CM^2 OKAY.. THIS IS YOUR SOLUTION BUDDY..^_^ :-)
HEIGHT OF CYLINDER = ?
RADIUS OF CYLINDER = 7 CM
V.OF CYLINDER =PIE R^2 H
2002=22/7×7×7×H
2002=7 WILL CANCEL OUT THEN
2002=22×7×H
2002=154×H
2002/154=H
H=13 CM
THEN THE TOTAL SURFACE AREA OF CYLINDER = 2PIE R (H+R)
= 2×22/7×7 (13+7)
=THEN 7 WILL CANCEL OUT
=22×2 (13+7)
=44×20
= 880 CM^2 OKAY.. THIS IS YOUR SOLUTION BUDDY..^_^ :-)
Arbazpatel:
Tnx
Answered by
4
Answer:
The height of cylinder=13cm
Total surface area of cylinder=880cm²
Step-by-step explanation:
Radius of cylinder=7cm
volume of cylinder=2002cm³
volume of cylinder = πr²h
2002=22/7×7²×h
2002=22/7×7×7×h
2002=22×7×h
2002=154×h
2002/154=h
h=13cm
total surface area of cylinder=2πr(h+r)
=2×22/7×7×(13+7)
=2×22×20
=880cm²
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