1. Polygon Project Review

2. Properties to remember about slope…
Parallel lines have equal slope
Perpendicular lines have negative reciprocal slopes
What does a line with no slope look like?
The slope in fraction form is
This means the rise is and the run is
The line is a line

3. Properties to remember about slope…
What does a line with zero slope look like?
The slope in fraction form is
This means the rise is and the run is
The line is a line
Are horizontal and vertical lines perpendicular?
Can a triangle have two equal slopes?
Do the slopes tell you anything about the length/size of the sides?

4. Notes on the lengths of the sides…
The lengths of the sides do not tell you whether the shape is a triangle, quadrilateral, pentagon, hexagon, heptagon…
The lengths also do not tell you anything about whether there are right angles or not.

5. Properties to remember about triangles…
All 3 sides have the same length?
2 sides have the same length?
No sides have the same length?
Can you have a concave triangle?
So all triangles must be
All angles less than 90?
One 90 angle?
All angles greater than 90?
Can a triangle be right and acute?
Acute and obtuse?
Right and obtuse?

6. Properties to remember about quads…
Main characteristic of a trapezoid?
Is a rectangle a parallelogram?
Any other classifications?
Is a square a parallelogram?
A rhombus?
A rectangle?
A trapezoid?
Is a rhombus a square?

7. Properties to remember about all polygons…
What makes a shape convex?
What makes a shape concave?
Can a shape be both?
What makes a shape “regular”?
Is a rhombus regular?

8. Formulas to remember…
Distance Formula: Slope Formula:

9. DON’T FORGET TO BRING YOUR NOTES WHEN YOU COME TO RE-TEST/PROJECT!!!