Right triangle trigonometry
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Adding Vectors
Move, rotate, and resize two vectors in a plane. Find their resultant, both graphically and by direct computation.
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Distance Formula - Activity A
Explore the distance formula as an application of the Pythagorean theorem. Learn to see any two points as the endpoints of the hypotenuse … of a right triangle. Drag those points and examine changes to the triangle and the distance calculation.
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Distance Formula - Activity B
Explore the distance formula as an application of the Pythagorean theorem. Learn to see any two points as the endpoints of the hypotenuse … of a right triangle. Drag those points and examine changes to the triangle and the distance calculation.
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Geoboard: The Pythagorean Theorem
Build right triangles in an interactive geoboard and build squares on the sides of the triangles to discover the Pythagorean Theorem.
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Pythagorean Theorem - Activity A
Explore the Pythagorean Theorem using a dynamic right triangle. Examine a visual, geometric application of the Pythagorean Theorem, using … the areas of squares on the sides of the triangle.
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Pythagorean Theorem - Activity B
Explore the Pythagorean Theorem using a dynamic right triangle. Examine a visual, geometric application of the Pythagorean Theorem, using … the areas of squares on the sides of the triangle.
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Sine and Cosine Ratios - Activity A
Reshape and resize a right triangle and examine how the sine of angle A and the cosine of angle A change.
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Sine and Cosine Ratios - Activity B
Manipulate a right triangle and examine how the sine of angle A and the cosine of angle A change.
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Sine, Cosine and Tangent
Reshape and resize a right triangle and examine how the sine of angle A, the cosine of angle A, and the tangent of angle A change.
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Tangent Ratio
Reshape and resize a right triangle and examine how the tangent of angle A changes.
