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Learners examine the properties of a triangle and work practice problems to find a triangle's perimeter and area.
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.
By Allen Reed, Douglas Jensen
In this animated activity, learners read about the properties of a rectangle and its components. They then work practice problems to find the perimeter and area of rectangles.
Standard-Position Angles and Reference Angles
By Kevin Ritzman
The learner will recognize standard-position angles and find the reference angle for any standard-position angle.
Simplifying Algebraic Expressions: Multiplication
Learners read definitions of the terminology associated with algebraic operations and then follow steps to use the fundamental laws of multiplication to simplify algebraic expressions.
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