Polygons
Angles
Triangles
Missing Angles
Terminology
100
A polygon with 4 sides and no right angles.
What is a rhombus?
100
An angle that measures 35 degrees.
What is an acute angle?
100
Three
What does the prefix tri- mean?
100
An angle that combines with another angle to form a 90 degree angle.
What is a complimentary angle?
100
An exact location in space.
What is a point?
200
A polygon with four right angles and two pairs of parallel sides.
What is a rectangle?
200
An angle that measures exactly 90 degrees.
What is a right angle?
200
A triangle with one right angle.
What is a right angle?
200
An angle that combines with another angle to form a straight (180 degree) angle.
What is a supplementary angle?
200
A figure with one endpoint that goes on forever in one direction.
What is a ray?
300
A polygon with only one pair of parallel sides.
What is a trapezoid?
300
An angle that measures exactly 180 degrees.
What is a straight angle?
300
A triangle with all acute angles.
What is an acute triangle?
300
45 degrees + x degrees= 90 degrees
What is 45 degrees?
300
A figure that has two endpoints.
What is a line segment?
400
A polygon with 9 sides.
What is a nonagon?
400
An angle that measures 140 degrees.
What is an obtuse angle?
400
A triangle with one obtuse angle.
What is an obtuse triangle?
400
17 degrees + x degrees=90 degrees
What is 73 degrees?
400
A figure that goes on forever in both directions.
What is a line?
500
A shape that is not a polygon and has an infinite amount of lines of symmetry.
What is a circle?
500
An angle that measures 270 degrees.
What is a reflex angle?
500
The total degrees for all three angles in any triangle
What is 180 degrees.
500
110 degrees + x degrees= 180 degrees
What is 70 degrees?
500
Lines that intersect and form right angles.
What are perpendicular lines?
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