A=πr2
C=2πr
Solving forA
A=C2
4π=42
4·π≈1.27324
Answer:
perimeter of circle is 4trcm (A≈1.27 area of circle)
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Answers & Comments
A=πr2
C=2πr
Solving forA
A=C2
4π=42
4·π≈1.27324
Answer:
perimeter of circle is 4trcm (A≈1.27 area of circle)