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15
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Pi is equal to the ratio of the ____________ of a circle divided by its ____________.
CIRCUMFERENCE divided by its DIAMETER
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15
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What is the circumference of the circle?
56.52 inches
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What's the area of a circle with a radius of 5 miles?
78.5 square miles (78.5 mi^2)
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What is the diameter of a circle?
It's a line that goes from one edge of a circle through the center of a circle touching the opposite edge.
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What is the formula for finding the area of a circle?
Pi (3.14) times radius times radius
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monster
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fairy
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25
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gift
Win 25 points!
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lifesaver
Give 10 points!
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eraser
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fairy
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fairy
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lifesaver
Give 20 points!
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heart
Other team wins 25 points!
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rocket
Go to first place!
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shark
Other team loses 15 points!
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lifesaver
Give 25 points!
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15
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The commemorative 1988 plate celebrating Mickey Mouse's 60th birthday is 9 inches in diameter. What is the area of the plate?
63.585 square inches (63.585 in^2)
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What is the area of this circle?
3215.36 square centimeters or 3215.36 cm^2
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The diameter of the window is 5 feet. What is its area?
19.625 square feet (19.625 ft^2)
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15
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What do you call this symbol?
The symbol is the Greek letter, pi.
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The Jeep spare tire cover has a radius of 16 inches. What is the circumference of the cover?
100.48 inches or approximately 8 feet
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The diameter of the window is 5 feet. What is its circumference?
15.7 feet
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What is the diameter of a circle with a radius of 3.25 feet?
6.5 feet
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What is the approximate value often used for pi?
3.14
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