Quadrilaterals With Congruent Opposite Angles Are Parallelogram

In the previous post, we have proved that if the opposite sides of a quadrilateral are congruent, then they are parallel. In this post, we are going to show that if the opposite angles of a quadrilateral are congruent, then it is a parallelogram. In the figure below, we have quadrilateral ABCD with and . […]
Continue reading…

 

Congruent Opposite Sides of Quadrilaterals are Parallel

In this post, we are going to discuss one basic concepts of quadrilaterals. That is, if we have a quadrilateral, and the opposite sides are congruent, then these opposite sides are parallel. ¬†This is the same if the two opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram. Consider the quadrilateral¬†below. […]
Continue reading…