The circumference of the base of the cone is 6, the generatrix is 2. Find the area of the lateral surface of the cone.

univerkov | January 31, 2021 | education

Cone;
C = 6;
l = 2;
S side. =?
Decision:
The lateral surface area of a round cone is equal to the product of half of the base circumference by the generatrix.
S side. = (1/2) Сl
where C is the circumference of the base of the cone;
l – generator of the cone.
S side. = 1/2 * 6 * 2 = 6
Answer: 6

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