A cylinder has a diameter of $20 c m$ . The area of curved surface is $1000 c m^{2}$ . FindAthe height of the cylinder correct to one decimal place.The volume of the cylinder correct to one decimal place. (Take $π = 3.14$ )

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Solution

Diameter of cylinder = 20 cm
Radius (r) = $\frac{20}{2} = 10 c m$
$C S A = 1000 c m^{3}$
$2 π r h = 1000$
$2 (3.14) (10) h = 1000$
$h = \frac{1000}{2 (3.14) (10)}$
$= 15.9 c m$
and volume = $π r^{2} 2 h$
$= (3.14) (10)^{2} (15.9)$
$= 4992.6 c m^{3}$

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A cylinder has a diameter of 20 cm. The area of curved surface is 1000 cm2. FindAthe height of the cylinder correct to one decimal place.The volume of the cylinder correct to one decimal place. (Take π=3.14)

Diameter of cylinder = 20 cmRadius (r) =202=10cmCSA=1000cm32πrh=10002(3.14)(10)h=1000h=10002(3.14)(10)=15.9cmand volume = πr22h=(3.14)(10)2(15.9)=4992.6cm3

A cylinder has a diameter of $20 c m$ . The area of curved surface is $1000 c m^{2}$ . FindAthe height of the cylinder correct to one decimal place.The volume of the cylinder correct to one decimal place. (Take $π = 3.14$ )

Diameter of cylinder = 20 cm
Radius (r) = $\frac{20}{2} = 10 c m$
$C S A = 1000 c m^{3}$
$2 π r h = 1000$
$2 (3.14) (10) h = 1000$
$h = \frac{1000}{2 (3.14) (10)}$
$= 15.9 c m$
and volume = $π r^{2} 2 h$
$= (3.14) (10)^{2} (15.9)$
$= 4992.6 c m^{3}$