Videos
Number Line
126
The Four - Point Story
133
The Mid - Point Thesis
335
The Converse
421
The Angle Theory
294
Leaves of the Same Branch
268
The Prerequisites
502
The Required Proofs
205
The Heirarchy
128
Rectangle
222
The Four - Point Story
133
Introduction
161
Diagonals of a Parallelogram Bisect Each Other
127
Introduction to Quadrilaterals
138
Properties of Kites
151
Parallelogram
29
Rhombus
20
Special Parallelograms
294
Rectangle
80
A Few Proofs
253
Some more proofs
286
Square
65
If Pairs of Opposite Sides of a Quadrilateral are Congruent then it is a Parallelogram
215
If Both the Pairs of Opposite Angles of a Quadrilateral are Congruent then it is a Parallelogram.
234
If the Diagonals of a Quadrilateral Bisect Each Other then it is a Parallelogram.
255
A Quadrilateral Is a Parallelogram If a Pair of Its Opposite Sides Is Parallel and Congruent
217
Diagonals of a Rhombus are Perpendicular to Each Other
112
Diagonals of a Rectangle are Congruent
98
Midpoint Theorem
334
Converse of Midpoint Theorem
139
Opposite Sides and Angles of a Parallelogram
447
Diagonals of a Parallelogram Bisect Each Other
383
Pair of Its Opposite Sides Is Parallel and Equal in a Parallelogram
260