What is this called?
How many sides does a quadrilateral have?
4
What makes a triangle a right triangle?
one angle is a right angle
What type of angle is this angle?

Obtuse
This shape(s) can help me solve an area/perimeter problem quickly and easily
square / rectangle
Look at the Clock, what angle is it?
90 degree angle
If my angle is opening to the left, which numbers do I use?
Outer numbers (or top numbers)
What is this triangle called? 
Acute Triangle
Which is not always an attribute of a rectangle?
A. opposite sides are parallel
B. opposite sides are equal in length
C. all sides are equal in length
D. all angles are right angles
C. all sides are equal in length
True or False: A square has to have all right angles?
True
What is this called?
Line Segment
The teacher's desk creates a specific angle in each corner. What is it called?
A Right Angle
What kind of triangle has 1 obtuse angle
obtuse triangle triangle
What type of angle is 90 degrees?
right angle
What is a triangle classified as when it has 1 right angle
Right triangle
Parallel lines cross at a 90 degree angle - True or False?
False
Two trains leave the subway station in opposite directions. What type of lines are they creating?
Parallel Lines
What kind of lines does our ceiling show us?
Perpendicular Lines or parallel lines
An acute triangle has at least _____ acute angles?
What is 3.
Where do we begin to measure?
0 on the top numbers or 0 on the bottom numbers
True or False? A rectangle has to have all equal sides
false
I am a fixed location on a line
A Point
What is the measurement of this angle? What kind of angle is this?
75, acute
We measure angles in ____?
Degrees
How many degrees are in a straight angle?
180 degrees
An equilateral triangle has one side that is 12 cm long. What is the measurement of the other two sides?
12 cm
True or False: A square has to have all right angles
True
What are line segments that intersect at an angle of 90 degrees
Perpendicular lines
Two rays meet at a common point is called?
A vertex
I have 4 equal sides and 4 right angles. What am I?
Square