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sveticcg [70]
3 years ago
9

PLS ADD EXPLANATION Cylinder radius is 2 cm height is 10cm what is the surface area

Mathematics
1 answer:
vlada-n [284]3 years ago
4 0

Answer:

150.83 (cm²).

Step-by-step explanation:

1) the area of the bottom and top is: A₁=π*r²*2=2*3.1415*4≈25.13 (cm²);

2) the length of the circle in the bottom/top side is: l=2*π*r=2*3.1415*8≈12.57 (cm);

3) the area of the side surface of the cylinder is: A₂=l*h=12.57*10=125.7 (cm²);

4) the required area of the cylinder is:

A=A₁+A₂=25.13+125.7=150.83 (cm²).

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