Finding Missing Parts in Parallelograms

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

• 10

• 11

• 7

• 5

Which is NOT a property of a parallelogram?

• Diagonals bisect each other
• Diagonals are congruent
• Both pairs of opposite sides are parallel
• Both pairs of opposite angles are congruent

The opposite angles of a parallelogram are ...

• complementary
• congruent
• supplementary
• perpendicular

In a parallelogram, consecutive angles are __________.

• congruent
• supplementary
• corresponding
• parallel

In a parallelogram, diagonals are __________.

• perpendicular
• bisected
• congruent
• parallel

Which shape is NOT a type of parallelogram?

• trapezoid
• rectangle
• rhombus
• square

The figure is a parallelogram.

Solve for x.

Opposite sides are congruent so 2x - 5 = 17.

(Add 5 and divide by 2)

• 1

• 11

• 7

• 6

The figure is a parallelogram.

Solve for x.

The consecutive angles add up to 180 as they are supplementary.

So 14x + 2 + 80 = 180 Solve for x

• 7

• 2

• 0

• 4

3 angles of a quadrilateral are 110, 120 and 50. What is the measure of the 4th angle?

Remember all four angle of a quadrilateral are equal to 360 degrees.

• 60

• 70

• 80

• 130

All of the angles of a quadrilateral add up to what?

• 1000

• 360

• 180

• 90