Target Areas

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Determine the area of a target formed by concentric circles.

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Dalmatian Day

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Cut various circles from paper measuring 9 inches by 12 inches. What’s the area of the circles and the percent of paper wasted after cutting out the circles?

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What is This Point?

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Determine the properties associated with a special point inside a triangle.

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Triangle in a Quadrilateral

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Given the ratio of a quadrilateral’s length to width, find the ratio of the area of a special shaded region to the area of the quadrilateral.

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Transforming Triangle

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What is the perimeter of a rectangle formed from an equilateral triangle?

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Bouncing Barney

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Follow Barney’s walking pattern to determine how many times he will reach a wall before returning to his starting point.

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Casting Shadows

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Use a man’s shadow to determine his distance from a tree.

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The Third Side

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What are the possible perimeters that a given triangle can have?

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All Swimmed Out

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Determine the shortest path in a noncollinear route using triangles.

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Optimal Triangles

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Determine the largest area of a triangle given a restricted perimeter.

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