Vocabulary
Symmetry
Angles
Missing Angles
Polygons
100
side by side and equal distance apart
What are parallel lines?
100
Is this a line of symmetry?
No
100
What is the measurement of the angle shown below?
20 degrees
100
Find the missing angle
22 degrees
100
How can we classify this triangle?
right, scalene
200
at an angle of 90 degrees to another line, side
What are perpendicular lines?
200
*Which of these figures have exactly 2 lines of symmetry? *
B
200
Which angle measures to 80 degrees?
B
200
What is the missing angle
128 degrees
200
How can we classify this triangle?
acute, equilateral
300
a place or area where two things cross
What are intersecting lines?
300
*How many lines of symmetry does this shape have?*
4
300
Measure the angle.
What type of angle is it?
30 degrees, acute
300
What is the missing angle
30 degrees
300
How can we classify this polygon?
Quadrilateral, trapezoid
400
standing or pointing straight up and down
What is vertical?
400
*How many lines of symmetry does this figure have?*
1
400
What kind of angle is this?
Acute, right , obtuse, straight
Acute
400
Ray OC divides the straight angle AOB into two parts shown below.
Which equation represents how to find the measure, in degrees of angle AOC?
A) 180+78=?
B) 180-78=?
C) 90-78=?
D) 90+78=?
B: 180-78=?
400
How can we classify this polygon?
Quadrilateral, parallelogram, rhombus
500
left to right; parallel to the ground
What is horizontal?
500
How many lines of symmetry does a circle have?
Infinite
500
Right angles are formed at what kind of lines?
What are Perpendicular lines?
500
What is the measure of angle x?
65 degrees
500
How can we classify this polygon?
Quadrilateral, parallelogram, rectangle, rhombus, square