I nailed it Mr. Nelson #12

Author:nelsone

The medians of any triangle meet at a single point called the CENTROID. (The median of a triangle is a line segment from a vertex to the midpoint of the opposite side.)

New Resources

Deriving the Sector Area Formula
Linear Combination of Vectors
Marion's Theorem
Graphing Basic and Compound Inequalities
Deciding How New Information Affects Probability

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Multiplication Wheel:
Angles at a Point
Distance to a point 2
Schueller Rectangle
Kocka

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Subtraction
Mode
Equations
Similarity Transformation or Similarity
Confidence Interval