If the radius and the slant height of a right circular cone are each multiplied by 9, by what factor is the surface area of the
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Answer:
The answer is 753.01 m².
Step-by-step explanation:
Given that the formula of sector is θ/360×π×r² where r represents radius of circle. Then, you have to substitute the values into the formula :
Let θ = 255°
Let π = 3.14,
Let r = 18.4m,
