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Learners examine the properties of a triangle and work practice problems to find a triangle's perimeter and area.
Ratios and Proportions
By Allen Reed, Douglas Jensen
In this interactive object, learners simplify ratios and solve problems using proportions. All terms are defined.
By Douglas Jensen
In this animated and interactive object, learners examine the definitions and formulas for radius, diameter, circumference, and area. Students also solve practice problems involving the circumference and area of a circle.
Strength of Materials: The Centroid of a Triangle
By Steve Whitmoyer
In this animated and interactive object, learners calculate the area and centroid of a triangle.
Labeling a Right Triangle
By Roy Peterson
In this learning activity you'll identify the sides of a right triangle with respect to the angles.
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