Area of a Triangle

Instructions

1) Click and drag the vertices with your mouse to modify the triangle. 2) Use the slider to show what happens when we double the triangle and rotate it.

New Resources

A note on Erdős’s mysterious remark
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Basic Percent Exercises (V2)
Untitled
Golden Rectangles and Golden Spirals

Discover Resources

理化合力
Horton_LabelingObjects
Will It Hit 2
Trapezoid Area

Discover Topics

Trigonometric Functions
Subtraction
Equilateral Triangles
Integers
Statistical Characteristics