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1. Who Am I?
 My
total angle measure is 360˚.
 All of my sides are different lengths.
 I have no right angles.
2. Who Am I?
I have no right angles
My total angle measure is not 360˚
I have fewer than 3 congruent sides.
3. Who Am I?
My total angle measure is 360˚ or less.
 I have at least one right angle.
 I have more than one pair of congruent sides.

4. Who Am I?

I have at least one pair of parallel sides.
 My total angle measure is 360˚.
 No side is perpendicular to any other side.
5. Give the angle measures in
each.
a.
b.
c.
d.
e.
f.
Diagonals
Joining two nonadjacent vertices of a
polygon
6. Which shapes will the diagonals
always be perpendicular?
Type of
Quadrilateral
Trapezoid
Parallelogram
Rhombus
Rectangle
Square
Kite
Are diagonals
perpendicular?
Write:
always
sometimes or
never.
Question # 7
If the measure of angle D = 75°, what is the
measure of <B, <C and <A?
B
A
C
8. Prove that this tessellates.
2
1
3
4
9
8
5
7
6
Sum of the angles of a polygon
Polygon
#
sides
Triangle
3
Quadrilateral
4
Pentagon
5
Hexagon
6
Heptagon
7
Octagon
8
Nonagon
9
Decagon
10
Undecagon
11
Dodecagon
12
Triskaidecagon
13
Nth
N
Total degrees
9. What
patterns do you
see?
10. The sum of which 3 angles will
equal 180˚?
2
3
4
9
11
10
12
8
7
1
5
6