Quadrilaterals Missing Sides

Solve for the variables.

• x=15, y=9

• x=9, y=15

Just write the number.

Just write the number

Just write the number

The shown quadrilateral is a rectangle. If AB is 10 what is the length of DC

• 10

• 5

• 15

How many sides does a quadrilateral have?

• 3 sides

• 4 sides

• 5 sides

• 6 sides

Which of the following properties is true about parallelograms?

• Opposite sides are congruent.

• Diagonals are congruent.

• Diagonals are perpendicular.

• 15 IN. because opposite sides are congruent in a rhombus.

• 15 IN. because all sides are congruent in a rhombus.

• 30 IN. because diagonals bisect each other in a rhombus.

• 30 IN. because diagonals are perpendicular in a rhombus.

• 10 ft. because opposite angles are congruent in an isosceles trapezoid.

• 10 ft. because the diagonals bisect each other in an isosceles trapezoid.

• 10 ft. because all sides of an isosceles trapezoid are congruent.

• 10 ft. because the legs of an isosceles trapezoid are congruent

• 123 because opposite angles are congruent in trapezoids.

• 57 because consecutive angles sum to 180 in parallel lines.

• 123 because consecutive angles sum to 180 in parallel lines.

• 57 because opposite angles are congruent in trapezoids.