What is this called?
A ray
How many sides does a pentagon have?
4
These lines are always the same distance apart, never meet or cross and go in the same direction
parallel line
What type of angle is this angle?

Obtuse
Find the missing angle of the triangle?

65°
Which polygon has 4 sides?
quadrillateral
What quadrilaterals has two pairs of parallel lines and four equal sides?
rhombus and square
Which quadrilaterals has 2 pairs of parallel sides, and 4 right angles?
rectangle and square
You can classify triangles by their _________ and their ________.
angles and sides
What is this called?
Line Segment
What makes a regular polygon?
Equal sides!
Equal angles!
What type of angle is 90 degrees?
right angle
____ is made only of straight line segments,has three or more sides and it is completely closed (no openings)
Polygon
True or False: Intersecting lines create right angles
False
What type of triangle is this? And what are the missing angles?

Isosceles and 35° per angle (70°)
Give an example of a regular polygon
square
what is the name of a 6 sided figure
hexagon
What do we call a triangle that has NO equal sides?
Scalene
What do we call a pair of lines that make 90 degree angles when they cross?
perpendicular lines
What type of angles are these?
25° 135° 90° 285°
acute angle, obtuse angle, right angle, reflex angle
How is an acute angle different than an right angle?
An acute angle is smaller than a right angle (less than 90 degrees)
What is an equilateral triangle?
equal sides & equal angles
A triangle that has two equal sides and one is not
Isosceles
Where Do You Start to Measure an Angle Using a Protractor?
Find the vertex/end point/origin
Double : Draw the following angles in 15 seconds
75° 135°

