What must be true about the sides of a quadrilateral to be a parallelogram?
Opposite sides must be parallel (and/or congruent)
True or false: Every rectangle is also a parallelogram.
True! Rectangles meet all the requirements to be a parallelogram.
Rhombi share all features of a parallelogram in addition to having which unique feature about their sides?
All sides are equal length (congruent).
True or false: squares have all the properties of parallelograms, rectangles, and rhombi.
True!
The sum of the angles of a triangle
What is 180°
Given quadrilateral ABCD, how would you know if it is a parallelogram based on its diagonals?
If they bisect each other, then it is a parallelogram.
What feature is true about the diagonals of rectangles in addition to bisecting each other?
Diagonals of a rectangle are congruent.
What feature is true about the diagonals of a rhombus in addition to bisecting each other?
Diagonals are perpendicular.
If quadrilateral ABCD is a square, what relationship exists amongst its diagonals?
They are perpendicular bisectors of each other.
Being a DJ
What is Mr. Davis' Side Gig
Which of the following is NOT a Parallelogram rule
Consecutive Angles are supplementary
Opposite sides are Congruent
Diagonals are Congruent
Opposite angles are congruent
Diagonals are Congruent is a RECTANGLE RULE
Name the two coordinate geometry tools that could be used to verify the existence of a rectangle AND state what evidence you would need from them.
1) Slope Formula - used to show two segments meeting at a vertex are perpendicular by showing opposite reciprocal slopes
2) Distance formula - used to show the diagonals are equal length and thus congruent by definition
What rule does a square and rhombus share?
All 4 sides are congruent
Diagonals are Perpendicular
Diagonals bisect opposite angles
This is your lucky day!!!! You get a FREEBIE
Points for the team that choose this question!!!
The Staff Member that was in Westside's Simply Irresistible Show Choir Group
Ms. Lawson
Given the figure below, find the values of y
.
y = 5; Remember in a Parallelogram that the diagonals bisect each other. Write the equation
3y-5 = y + 5 and solve
Given the Rectangle below, given BD = 5x + 2 and AE = 2x + 5 find the Value of x

BD = AE Diagonals are congruent
5x+2=2x + 5
3x =3
x=1
Assume quadrilateral ABCD is a rhombus. If AD = 2x+4 and CD=4x-4, find the value of x.
x = 4
If AD is 9x-14 and BD is 6x + 7 what is the value of x 
x = 7
What Staff Member Played Softball for 4 years?
Who is Ms. Becks
Given quadrilateral ABCD (Hint draw it out) Use the following rules to give the most Precise Name
overline (AB)cong over line (DC)
overline (AD)cong over line (BC)
overline (AC)Cong over line (BD)
Opposite sides are Congruent (Parallelogram rule)
Diagonals are Congruent (Rectangle rule)
MOST PRECISE NAME is Rectangle
Given Rectangle LMNO, OP is 2x + 20 and NP is 6x-4, What is the measure of LP? 
Rectangles, the diagonals are bisected, Cut exactly in half. The diagonals are also Congruent to each other.
LP=MP=NP=LP
Solve the equation 2x+20 =6x-4. 24=4x 6=x
Substitute in 6 for x, 2(6)+20 equals 32
LP is 24
Find angles 1, 2 and 3 of the Rhombus
Angle 1 = 38°. 180-52-90=38
Angle 2 - 90° Diagonals are perpendicular
Angle 3 - 90° Diagonals are perpendicular
if AO = 3x-9 and Do = 5x - 33 what is the length of
OC? 
3x-9 = 5x -33
x = 12
Substitute in 12 for x
5(12) - 33 = 27 Length is 27 units long
This staff member has a Master's Degree from Arizona State University
Ms. Mortenson