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15
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What is the approximate value often used for pi?
3.14
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What's the formula for finding the circumference of a circle?
Multiply 3.14 times the diameter of the circle
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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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The diameter of the window is 5 feet. What is its area?
19.625 square feet (19.625 ft^2)
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The diameter of a circle is 7.5 miles. What is the unit of measurement when you find the area of the circle?
square miles or miles^2. (^2 means "to the power of 2.")
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The commemorative 1988 plate celebrating Mickey Mouse's 60th birthday is 9 inches in diameter. What is the CIRCUMFERENCE of the plate?
28.26 inches
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The diameter of the window is 5 feet. What is its circumference?
15.7 feet
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seesaw
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seesaw
Swap points!
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rocket
Go to first place!
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thief
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15
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Find the circumference of a circle with a diameter of 12 inches.
37.68 inches
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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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thief
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gold
Win 50 points!
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shark
Other team loses 20 points!
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thief
Give points!
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25
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lifesaver
Give 15 points!
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seesaw
Swap points!
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fairy
Take points!
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25
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lifesaver
Give 25 points!
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banana
Go to last place!
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rocket
Go to first place!
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rocket
Go to first place!
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thief
Give points!
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25
15
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What is the diameter of this circle?
64 centimeters
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What do you call this symbol?
The symbol is the Greek letter, pi.
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