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This informative article explains the concepts of diameter, radius, and area of a circle, along with the formula for finding the circumference. It also introduces the symbol pi and provides an estimate of its value.
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Circles Bingo Aim: Full House
Choose 9 to go in your grid Chord 3.14 Diameter π πr2314cm2 Circumference 10cm Radius 34cm 31.4cm Segment πD Sector 900 Arc