Find the lateral area of a cone with a radius of 3 m and a slant height of 5 m. Use 3.14 for pi and round to the nearest tenth.
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1 point
75.4 m^2
47.1 m^2
28.3 m^2
121 m^2
The lateral area of a cone can be found using the formula L = πrs, where r is the radius and s is the slant height.
Plugging in the given values, we get:
L = 3.14 x 3 x 5
L = 47.1
Rounding to the nearest tenth, the lateral area of the cone is 47.1 m^2.
Therefore, the answer is B) 47.1 m^2.