Geometry Quadrilaterals Theorem

Which is a property common to all parallelograms?

• congruent diagonals

• diagonals bisect opposite angles

• diagonals are perpendicular

• diagonals bisect each other

Which is true for a rhombus only?

• opposite angles are congruent

• opposite sides are parallel

• diagonals bisect opposite angles

• diagonals are congruent

Two adjacent angles of a parallelogram are (3x-4) and (3x+16) degrees. Find the value of x

The sum of two opposite angles of a parallelogram is 130 degrees. Find the measure of each angle.

If ABCD is a parallelogram, what is the length of BD? 

• 10

• 11

• 7

• 5

Find the missing angle of the trapezoid.

• 65

• 115

• 180

• None of these

The lengths of the diagonals are congruent.

• Parallelograms

• Rhombuses

• Rectangles

• Squares

All sides are congruent.

• Parallelograms

• Rhombuses

• Rectangles

• Squares

A square is considered a rectangle.

• True

• False

All angles are right angles.

• Parallelograms

• Rhombuses

• Rectangles

• Squares