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A circle has a circumference of 94.2 centimeters Its diameter is 15 centimeters which expression can you use to find the approximate value for pi?
Wiki User
∙ 14y ago
You've stated an impossible question. If a circle has a circumference of 94.2 cm, it has a diameter of 30 cm. If it has a diameter of 15cm, it has a circumference of 47.1 cm.
circumference = 2 * pi * radius = pi * diameter
If you had stated the question correctly (changed circumference to 47.1 cm OR changed diameter to 30 cm OR changed "diameter" to "radius"), then the answer would be:
pi = circumference / diameter = (e.g.) 94.2 cm / 30 cm
Wiki User
∙ 14y ago
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