Theorem 6-11 The diagonals of a rectangle are congruent
Is the parallelogram a rhombus or a rectangle? If the diagonal bisects the opposite angles then it’s a rhombus If the diagonals are perpendicular then it’s a rhombus If the diagonals are congruent, then it’s a rectangle
Isosceles Trapezoid - Base angles The base angles are congruent to each other.
Isosceles Trapezoid The diagonals of an isosceles trapezoid are congruent Hint: Isosceles triangle has two equal sides and so the base angles should also be equal
Kite The diagonals of a kite are perpendicular Hint: The t in kite crosses at a 90 degree angle, so should the diagonals