The expression for the lateral area of a right cylinder is L = 2πrh.
<h3>How to calculate the lateral surface area of the right cylinder?</h3>
Consider a right cylinder with radius 'r' and height 'h'.
The right cylinder has its height perpendicular to its base.
It is given that, the lateral area of a right cylinder can be found by multiplying twice the number by the radius and the height.
I,e., L = 2 × (3.142) × r × h
Where the number 3.142 is replaced by π. Then,
L = 2 × π × r × h
= 2πrh
Unit: sq. units
<h3>How to calculate total surface area using the lateral area?</h3>
To find the total surface area of the right cylinder, add the lateral area and the area of the base, and the top of the right cylinder.
Ie., S = L + A
⇒ S = 2πrh + 2πr²
Therefore, the expression for the lateral area of the right cylinder is L = 2πrh sq. units.
Learn more about the right cylinder here:
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