Diagonals of Quadrilaterals

The diagonals of a parallelogram

• are always congruent

• bisect each other

• are never congruent

• parallel

My diagonals are perpendicular. I am a:

• Rectangle

• Square

• Rhombus

• Kite

• Trapezoid

Has two bisecting diagonals.

• Rectangle

• Parallelogram

• Square

• Rhombus

• Kite

If AC = 10x+6 and BE = 8x-6, find BD.

• 3

• 18

• 12

• 36

If PQRS is a rectangle, PR = 9x+1 and QS = 13x-11, find TR.

• 3

• 14

• 8

• 63

Diagonals bisect each other.

• Parallelograms

• Kites

• Trapezoids

• Quadrilaterals

Diagonals are congruent

• Kite

• Trapezoid

• Isosceles Trapezoid

• Quadrilateral

One diagonal bisects the other.

• Kite

• Isosceles Trapezoid

• Rhombus

• Parallelogram

The shown quadrilateral is a rectangle. If AC is 10, what is the length of DE?

• 10

• 5

• 15

Which of these must have congruent diagonals? Check all that apply.

• Rectangle

• Square

• Rhombus

• Parallelogram

• Trapezoid