Proofing Problems: Quadrilateral
Types of Quadrilaterals

Explore the shape below. Move points A, B, C, and D to see what happens to the length and angle of the shape.
Q1
ABCD is a parallelogram where and . Prove and .
Q2
Given rhombus ABCD with diagonals intersecting at E. Prove .
Q3
Given kite ABCD is with and . Prove .
Q4
Given square ABCD with side and center O. M is the midpoint of CD. Prove