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5 cm5 cmThe surface area of the above figure isA. 208.1 cm2B. 225.6 cm2C. 314.2 cm2D. none of the above

User Rendicahya
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1 Answer

2 votes

It is a cylinder.

1.- Calculate the area of the base and the top

Area = 2*pi*r^2

Area = 2*3.14*5^2

Area = 157 cm^2

Total area of the base and top = 2 x 157 = 314 cm^2

2.- Calculate the perimeter of the circle.

Perimeter = 2*pi*r

Perimeter = 2*3.14*5

Perimeter = 31.4 cm

3.- Calculate the lateral area

Lateral area = 5 x 31.4

Lateral area = 157 cm^2

4.- Calculate the total area = 157 + 314

= 471 cm^2

5.- Result

D. None of the above

User IJR
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