Deriving a Formula for the Area of a Circle - never thought to use colored paper - it shows it better
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An interesting way of explaining the relationship between the area and circumference of a circle!

An interesting way of explaining the relationship between the area and circumference of a circle!

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Math-tastic Mary: Circumference and Area of Circles #etlobestimages #etlobest

Math-tastic Mary: Circumference and Area of Circles #etlobestimages #etlobest

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An easy mnemonic to help you remember the formula for circumference and area of a circle! And mmm, delicious pie!

An easy mnemonic to help you remember the formula for circumference and area of a circle! And mmm, delicious pie!

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