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More Lessons for Geometry

Math Worksheets

Video lessons to help geometry students learn the following proofs: Triangle Medians and Centroids (2D Proof)

Area Circumradius Formula Proof

Proof that the diagonals of a rhombus are perpendicular bisectors of each other.

Two column proof showing segments are perpendicular.

Triangle Medians and Centroids (2D Proof)

Showing that the centroid is 2/3 of the way along a median

Proof of the formula relating the area of a triangle to its circumradius

Proof that the diagonals of a rhombus are perpendicular bisectors of each other

Using triangle congruency postulates to show that two intersecting segments are perpendicular

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