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In this animated activity, learners read the definition of a parallelogram and then find the perimeter and area of parallelograms in practice problems.
In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."
In this interactive object, learners simplify ratios and solve problems using proportions. All terms are defined.
You'll practice calculating the surface area of a right circular cylinder.
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