The area 4

In square decimeters, how much is the area of a cylinder with a height of 2 dm and a diameter of 1 dm? "

Correct answer:

A =  7.854 dm2

Step-by-step explanation:

h=2 dm d=1 dm  r=d/2=1/2=21=0.5 dm  S1=π r2=3.1416 0.520.7854 dm2 S2=π d h=3.1416 1 26.2832 dm2  A=2 S1+S2=2 0.7854+6.2832=7.854 dm2



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