Isosceles Trapezoids

This geometry video tutorial provides a basic introduction into isosceles trapezoids. It discusses the basic properties of isosceles trapezoids. The bases are parallel and the legs are congruent. The lower base angles are congruent and the upper base angles are congruent. The lower base angles and the upper base angles form consecutive interior angles also known as same side interior angles and are therefore supplementary. This video contains plenty of examples and practice problems on isosceles trapezoids. It discusses how to calculate the area of an isosceles trapezoid as well as calculating missing sides and angles. Finally, this video discusses the midsegment theorem of a trapezoid.

Polygons:
   • Polygons  

Angles of Regular Polygons:
   • How To Calculate The Interior Angles ...  

Quadrilaterals:
   • Quadrilaterals - Geometry  

Parallelograms:
   • Parallelograms - Geometry  

Rectangles - Special Quadrilaterals:
   • Rectangles - Properties of Parallelog...  

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The Rhombus:
   • Rhombus, Basic Introduction - Geometry  

Kites:
   • Kites, Basic Introduction, Geometry  

Proving Parallelograms:
   • Proving Parallelograms With Two Colum...  

Proving a Quadrilateral Is a Kite:
   • Proving a Quadrilateral Is a Kite - T...  

Proving a Quadrilateral Is a Rhombus:
   • Two Column Proofs - Proving a Paralle...  

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Proving Isosceles Trapezoids:
   • Two Column Proofs - Proving Isosceles...  

2 Column Proofs - Quadrilateral:
   • Two Column Proofs With Parallelograms...  

Skew Lines:
   • Skew Lines, Perpendicular & Parallel ...  

Points, Lines, Planes, & Segments:
   • Points, Lines, Planes, Segments, & Ra...  

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