Parallelograms
Rectangles/Squares
Triangles
Trapezoids
Rhombus
100
What does parallel mean?
two sides will never intersect
100
What are the two missing sides equal to?
left = 8 and bottom = 12
100
All of the angles in a triangle add up to how much?
180
100
How do you know if two sides are parallel?
They have the same slope
100
True or False: The opposite sides of a rhombus add up to 180.
FALSE
200
What is the slope formula?
(y2 - y1)/(x2 - x1
200
How is a square different from every other rectangle?
It has 4 congruent sides
200
When can you use the pythagorean theorem?
To find the missing side of a right triangle
200
Why is a trapezoid not a parallelogram?
Because it only has 1 set of parallel sides
200
Name an angle that would be congruent to angle ABD.
Angle CBD, Angle CDB or Angle ADB
300
Which of the following is NOT a parallelogram?
Square, Rectangle, Trapezoid, Rhombus
Trapezoid
300
What is the distance formula?
square root 1 ((x2 - x1)^2 + (y2 - y1)^2
300
What is the formula for the pythagorean theorem?
a2 + b2 = c2
300
What is special about an isosceles trapezoid?
The two non-parallel sides are congruent
300
What is the measure of angle CEB? 
90
400
What are the properties of a parallelogram?
S - opposite sides are parallel
S - opposite sides are congruent
A- opposite angles are congruent
A - consecutive angles are supplementary
D - diagonals bisect each other
400
What are the two additional properties of a rectangle)? (other than the SSAAD properties)
4 right angles and diagonals are congruent
400
What is the name of a triangle that has only 2 congruent sides?
Isosceles triangle
400
How do you prove a quadrilateral is a trapezoid?
4 slope formulas, show 2 sides are parallel and the other 2 sides are not parallel
400
Besides the SSAAD properties, what are the 3 additional properties for a rhombus?
4 sides are congruent, diagonals perpendicularly bisect each other, diagonals bisect the angles
500
How can you prove a quadrilateral is a parallelogram?
4 slope formulas, and show opposite sides are parallel OR 4 distance formulas and show opposite sides are congruent
500
How can you prove a quadrilateral is a square?
6 distance formulas, show all 4 sides are equal and the diagonals are equal
500
To prove a triangle is a right triangle, you need to show that 2 of the 3 sides are perpendicular. How can you prove 2 sides are perpendicular?
Do the slope formulas and show they are negative reciprocals
500
How do you prove a quadrilateral is an ISOSCELES trapezoid?
4 slope formulas showing 2 sides are parallel and the other two sides are not parallel AND 2 distance formulas showing the non parallel sides are the same
500
How can you prove a quadrilateral is a rhombus?
4 distance formulas, show all 4 sides are congruent