Question

Find the circumference of a circle that has an area of 452.16 square meters. (Use 3.1416 as the value of π.) A. 24 meters B. 37.6992 meters C. 12 meters D. 75.3984 meters

Answer 1

Area = π.R²   AND CIRCUMFERENCE = 2π.R
Let's calculate R (radius):

452.16 = π.R²  → R² = 452.16/π → R² = 143.92 And R = √143.92 →R = 12 m

CIRCUMFERENCE = 2π.R =  2π.12 = 24 π = 75.39 84 (Answer D)

Answer 2

your answer is 75.3984

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