Basic Geometric Ideas
Measuring and Classifying Angles
Polygons
Triangles
Quadrilaterals
100
This figure has only one endpoint and extends forever in one direction.
What is a ray?
100
The angle measures between 0 and 90 degrees.
What is acute?
100
A closed figure made up of line segments.
What is a polygon?
100
A triangle has this many degrees.
What is 180 degrees?
100
This quadrilateral has only one pair of parallel sides.
What is a trapezoid?
200
The figure goes on an on in both directions.
What is a line?
200
If an angle measures more than 90 degrees, what type of angle is it?
obtuse
200
What is a figure with four right angles and four equal sides?
What is a square?
200
This triangle has no sides that are the same length.
What is scalene?
200
This quadrilateral never has four equal sides.
What is a trapezoid?
300
How many endpoints does a line segment have?
What is two?
300
What instrument is used to measure and draw angles?
What is a protractor?
300
This figure has six sides.
What is a hexagon?
300
A triangle has two angles that measure 130 degrees and 24 degrees. What is the measurement of the third angle?
What 26 degrees?
300
If given the following three angles: 90 degrees, 106 degrees, and 117 degrees. What is the measure of the fourth angle?
47 degrees
400
These lines never cross and they stay the same distance apart
What is parallel lines?
400
How many degrees are in a straight angle?
What is 180?
400
This figure has eight equal angles.
What is an octagon?
400
This triangle has one angle greater than 90 degrees.
What is obtuse?
400
A sail on a sailboat is a triangle with two sides perpendicular and no sides are congruent. What two terms could be used to describe the sail?
What is scalene and right?
500
These types lines intersect to form corners.
What are perpendicular lines?
500
An angle that measures 135 degrees.
What is obtuse?
500
This quadrilateral must have all four side of equal lengths.
What is a rhombus or a square?
500
The measures of two angles of a triangle are 23 degrees and 67 degrees. Is the triangle acute, right, or obtuse?
What is right?
500
A quadrilateral has three angles that measure 150 degrees, 30 degrees, and 30 degrees. What is the measurement of the fourth angle?
What is 150 degrees?
M
e
n
u