Points, lines, planes
This names a location.
A point
A triangles total interior angle degrees = what?
180 degrees.
Draw an acute angle. Do not erase!
Answers will vary.
Two lines that intersect and form 90 degree angles are called _______.
Perpendicular lines.
What are the 2 main criteria that a polygon MUST meet to be a polygon.
Straight line segments (no curves) and closed.
Part of a line between two end points.
A line segment.
Classify this triangle by sides: All 3 sides are 12 inches long.
Equilateral triangle.
Straight angles add up to ______.
180 degrees.
Transversal line.
A polygon that has 7 sides is called ______.
A heptagon.
Draw a ray. Do NOT erase!
Answers should have an endpoint with a line and a arrow at the end of the line.
If you have a 90 degree angle in a triangle, that triangle is classified as _____?
A right triangle.
True or false: vertical angles are not congruent.
False
90 degrees
A quadrilateral has three angles that are 41, 89, and 106 degrees. What is the degree of the missing angle?
124 degrees.
Colinear.
Two angles of a triangle is 14 degrees and 51 degrees. What is the measurement of the missing angle?
115 degrees.
Draw two adjacent angles. Do not erase!
Answers will vary.
Two angles form a straight line. One angle is 74.2 degrees. What is the measurement of the other angle?
105.8 degrees.
What is the total interior angle measurement of an octagon?
1080 degrees.
True or false: planes are 2 dimensional.
True
For an equilateral triangle, each angle is _____ degrees?
60.
Classify this angle: 270 degrees.
Not an angle.
True or false: Alternate interior angles are congruent.
True
What is the measurement of each interior angle of a pentagon?
108 degrees.