7.3 Proving a Quadrilateral is a Parallelogram Day 3

Which is not a method of proving quadrilaterals are parallelograms?

• Both pairs of opposite sides are congruent.
• Both pairs of opposite sides are parallel.
• Both pairs of opposite angles are congruent. 
• Consecutive angles are supplementary. 

Tags

CCSS.HSG.CO.C.11

State which method we can use to show that the quadrilateral is a parallelogram. 

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

Tags

CCSS.HSG.CO.C.11

State which method we can use to show that the quadrilateral is a parallelogram. 

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

Tags

CCSS.HSG.CO.C.11

State which method we can use to show that the quadrilateral is a parallelogram. 

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

Tags

CCSS.HSG.CO.C.11

State which method we can use to show that the quadrilateral is a parallelogram. 

• Both pairs of opposite sides are parallel.
• Both pairs of opposite sides are congruent.
• One pair of opposite sides are parallel and congruent.
• Consecutive angles are supplementary. 

Tags

CCSS.HSG.CO.C.11

Determine the value of x that would classify this quadrilateral as a parallelogram. 

• x = 155
• x = 50
• x = 75
• x = 25

Tags

CCSS.HSG.CO.C.11

Determine the value of x that would classify this quadrilateral as a parallelogram. (The expression are for the tick marks on the diagram). 

• x = 8
• x = 26
• x = 28
• x = 38

Tags

CCSS.HSG.CO.C.11

Is there enough information to determine that this quadrilateral is a parallelogram?

• yes
• no

Tags

CCSS.HSG.CO.C.11

How do you find the length of the side of a parallelogram?

• Use the distance formula
• Use the slope formula
• Use the midpoint formula

Tags

CCSS.HSG.GPE.B.7

How do you prove two lines are parallel?

• Use the distance formula
• Use the midpoint formula
• Use the slope formula and show the slopes are the same
• Use the slope formula and show the slopes are opposite reciprocals

Tags

CCSS.HSG.GPE.B.5