- The Ninja Mission - Steve Earth
Trig/Calc, difficulty level 4. Find the measurement of a spike's angle, given the star's perimeter.
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- The Oval Braided Rug - Leigh Nataro
Trig/Calc, difficulty level 2. Find the area of a shaded portion of an ellipse.
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- A Parabola Proof - Leigh Nataro
Trig/Calc, difficulty level 3. Prove that the area of a parabola is 2/3 the product of its width and height.
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- Patterning a Shotgun - Annie Fetter
Geometry, difficulty level 2. Construct a circular target with nine regions of equal area, with one a circle in the middle and spokes going out to the edge. If the whole circle is 6 feet in diameter, what will the diameter of the inner circle be?
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- Peanut's Back Yard - Jonathan Bauer
Pre-Algebra, difficulty level 3. Peanut, the overexcited dog, makes 40 laps around a stake and travels a total distance of 1 mile. If his bowl of water is 20 feet away from the stake, can he get a drink?
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- Pete's Predictions - Leigh Nataro
Trig/Calc, difficulty level 2. Verify the formula for finding the maximum height of a ball thrown upward.
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- A Picture Is Worth A Thousand Words - Leigh Nataro
Trig/Calc, difficulty level 4. Find the ratio of the area of the overlapping region to the area of non-overlapping regions of two circles.
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- A Problematic Pizza - Leigh Nataro
Trig/Calc, difficulty level 2. Find the area of a specific region of a circle based on given information.
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- Product Max - Leigh Nataro
Trig/Calc, difficulty level 2. Find the maximum value for two numbers whose sum is a.
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- Replacing the Football Field - Annie Fetter
Geometry, difficulty level 2. Will a regulation-size NCAA soccer field fit inside an equal-quadrant 400-meter track?
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- Round the World on a Wire - Terry Trotter
Algebra, difficulty level 2. A wire is wrapped around the equator of the earth. Then extra wire is spliced in. Can you walk under the slack that results?
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- Running a Mile on a Metric Track - Annie Fetter
Geometry, difficulty level 4. How far out from the rail on a 400 meter track would you have to run to cover 440 yards?
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- The Seal of Dalvek - Steve Earth
Trig/Calc, difficulty level 3. Discover the area of a circular segment based upon its circumference.
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- Sprinkler Spray - Lisa Lavelle
Math Fundamentals, difficulty level 4. Compare the radii of three sprinklers in Lily's garden.
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- Stained Glass Window - Jackson First Year Algebra Class
Elementary, difficulty level 5. Find the size of a stained glass window for my front door.
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- Studying Stars - Annie Fetter
Geometry, difficulty level 2. Given a number of points spaced around a circle, how many lines does it take to connect each point to all the other points except for the ones next to it?
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- The Subtending Chord - Annie Fetter
Geometry, difficulty level 3. A chord of a circle is the hypotenuse of an isosceles right triangle whose legs are radii of the circle. The length of the chord is 8 times the square root of 2. What is the length of the minor arc subtended by the chord?
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- The Suspension Bridge - Leigh Nataro
Trig/Calc, difficulty level 4. Determine the length of a parabola-shaped cable on a suspension bridge.
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- Taking Pictures of the Earth - Annie Fetter
Geometry, difficulty level 4. If you wanted to go out into space and take a picture of the earth, how far from the earth would you have to go to make sure that you got 1/4 of the equator in your picture? How about 1/3?
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- That's A Lot of Rock! - Leigh Nataro
Trig/Calc, difficulty level 3. Find the volume of a tunnel through a mountain.
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- The Unit Circle Triangle - Leigh Nataro
Trig/Calc, difficulty level 2. Find the area of the largest right triangle in the first quadrant of the unit circle.
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- Valentine Candy - Ethel Breuche
Algebra, difficulty level 2. A vendor who sells Valentine candy boxes wants to raise the price. For every twenty-five-cent increase he loses two customers. At what price should he sell the boxes to achieve the maximum profit?
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- What Do We Know About Tangents? - Annie Fetter
Geometry, difficulty level 2. Given two externally tangent congruent circles, construct a segment from the center of one circle tangent to the other circle. If the length of this segment is 10, what's the radius of the circles?
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- Where in the World is Essex Junction? - Leigh Nataro
Trig/Calc, difficulty level 3. How far is Essex Junction, Vermont, from the equator?
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- Where Is Whitehall? - Leigh Nataro
Trig/Calc, difficulty level 3. Find the distance from Whitehall, Pennsylvania, to the equator.
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- Which Pizza? - Annie Fetter
Geometry, difficulty level 2. Which is a better deal - a 16" diameter pizza for $11 or a 10" diameter pizza for $7?
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