Calculate 63764

A glass in the shape of a cylinder with a base diameter of 6 cm can hold 4dl of water. Calculate the height of the glass and its surface.

Correct answer:

h =  14.1471 cm
S =  589.882 cm2

Step-by-step explanation:

D=6 cm V=4 dl cm3=4 100  cm3=400 cm3  r=D/2=6/2=3 cm S1=π r2=3.1416 3228.2743 cm2  V=S1 h  h=V/S1=400/28.2743=14.1471 cm
S2=2π r h=2 3.1416 3 14.1471=3800266.6667 cm2  S=2 (S1+S2)=2 (S1+3800)=2 (28.2743+266.6667)=589.882 cm2

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