The circumference of a circle is 9π m. What is the area, in square meters? Express your answer in terms of π π
1 answer:
Answer:
A = 20.25π sq meters
Step-by-step explanation:
C = 2πr
9π = 2πr
divide π from each side to get:
9 = 2r
r = 9/2 or 4 1/2
A = πr²
A = π (4.5²)
A = 20.25π
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