In the surface area formula for cylinders, which expression represents lateral area

The total surface are of cylinder comprises of the lateral or curved surface area + the area of the flat surface on the top and bottom

The lateral surface area is calculated this way

curved area of the face × height

Here it is a circle and hence its circumference is 2πr

Hence the formula become

2πr × h = 2πrh

So 2πrh is the part that represents the curved area of the cylinder

(Additional info: The area of the faces is given by πr² for one side, since a cylinder has 2 faces

we have πr²+πr²=2πr²

Hence the total surface area is 2πrh +2πr²)

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

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