Proving parallelogram

Which of the answers does NOT prove parallelogram?

• Both opposite sides are parallel
• Diagonal lines bisect each other
• Only 1 pair of opposite sides are parallel
• Both opposite sides are congruent

What PROVES two lines are parallel to each other?

• opposite sides are congruent
• The slope is the same for both lines
• They look like it
• The lines have a slope that is a reciprocal of the other

Tags

CCSS.HSG.SRT.B.5

how are lines perpendicular?

• same slope
• opposite recirpical slope
• Pythagorean theorem
• distance formula

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

y = -2x - 4
y = 1/2 x + 7
are...

• parallel 
• perpendicular
• neither

Find the measure of  angle b.

• b=51
• b=129
• 180

Tags

CCSS.HSG.CO.C.11

Find the slope of the line.

• -5/4
• 5/4
• -4/5
• 4/5

Tags

CCSS.8.EE.B.5

A quadrilateral with 4 equal sides could be:

• a rectangle or a trapezoid
• a square or a rhombus
• a parallelogram or a trapezoid
• a kite or a square

Tags

CCSS.5.G.B.4