What is the missing reason in the proof below? A-Vertical Angles are Congruent
B-Given
C-CPCTC (Corresponding Parts of Congruent Triangles are Congruent)
D-Side-Angle-Side

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never