Rectangles - Properties of Parallelograms, Special Quadrilaterals - Geometry 

This geometry video tutorial provides a basic introduction into the properties of special quadrilaterals and parallelograms such as rectangles. It explains how to determine the length of an unknown segment as well as the diagonal length of a rectangle. It contains plenty of examples and practice problems. Opposite sides of rectangles are parallel and congruent just like a parallelogram. the diagonals are equal and they bisect each other. All angles of a rectangle are right angles.
Polygons:
• Polygons
Angles of Regular Polygons:
• How To Calculate The I...
Quadrilaterals:
• Quadrilaterals - Geometry
Parallelograms:
• Parallelograms - Geometry
Isosceles Trapezoids:
• Isosceles Trapezoids
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The Rhombus:
• Rhombus, Basic Introdu...
Kites:
• Kites, Basic Introduct...
Proving Parallelograms:
• Proving Parallelograms...
Proving a Quadrilateral Is a Kite:
• Proving a Quadrilatera...
Proving a Quadrilateral Is a Rhombus:
• Two Column Proofs - Pr...
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Proving Isosceles Trapezoids:
• Two Column Proofs - Pr...
2 Column Proofs - Quadrilateral:
• Two Column Proofs With...
Skew Lines:
• Skew Lines, Perpendicu...
Points, Lines, Planes, & Segments:
• Points, Lines, Planes,...
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