Answer:
129.89 m²
Step-by-step explanation:
Area of a circle of radius r is A = πr².
If r = 6.43 m, then A = π(6.43 m)² = 129.89 m²
Answer:

Step-by-step explanation:
y is equal to 2 and goes up to infinity
Answer:
46in
Step-by-step explanation:
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