Geometry Quiz on Parallelograms and Triangles

How do you describe any two opposite angles in a parallelogram?

• They are always congruent.

• They are supplementary.

• They are complementary.

• They are both right angles.

Which of the following conditions is not sufficient to prove that a quadrilateral is a parallelogram?

• Two pairs of sides are parallel.

• Two angles are supplementary.

• Two pairs of opposite sides are congruent.

• Two diagonals bisect each other.

All the following are properties of a parallelogram EXCEPT:

• Diagonals bisect each other.

• Opposite angles are congruent.

• Opposite sides are congruent.

• Opposite sides are not parallel.

If m∠B = (x + 40)° and m∠E = (2x + 20)°, what is the m∠B?

• 50°

• 60°

• 70°

• 80°

If BT = 2x - 10 and ES = x + 30, then ES = _____

• 50

• 60

• 70

• 80

If LOVE is a parallelogram and SE = 6, what is SO?

• 3

• 6

• 12

• 15

In quadrilateral RSTW, diagonals RT and SW are perpendicular bisectors of each other. Quadrilateral RSTW must be a:

• Rectangle

• Rhombus

• Square

• I, II, and III

What condition will make parallelogram WXYZ a rectangle?

• WX ≅ YZ

• WX ∥ YZ

• ∠X is a right angle.

• WX and YZ bisect each other.

What is the measure of ∠2 in rhombus HOME?

• 75°

• 90°

• 105°

• 180°

The diagonals of a rectangle have lengths 5x - 11 and 2x + 25. Find the lengths of the diagonals.

• 12

• 24

• 49

• 60