20 questions
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
Which quadrilateral(s) have opposite sides that are congruent?
Parallelogram
Rectangle
Square
Rhombus
Trapezoid