Angles
A location in space
What is a point?
The tool used to draw or measure an angle.
What is a protractor?
What is a right triangle?
A part of a line that has two endpoints
What is a line segment?
A chord (line) that passes through the center of a circle.
What is a diameter?
The first two steps in measuring an angle.
What is put the T at the vertex and line up one ray on the zero line?
A flat surface that goes on forever in all directions
What is a plane?
The name of the radius of circle A that has a diameter CD.
What is line segment AD?
Line ST and line QR cross at point Z and are not perpendicular.
What are intersecting lines?
This kind of angle is 90 degrees and represented by a square at its angle.
What is a right angle?
This type of triangle has three angles measuring 70 degrees, 60 degrees and 50 degrees.
What is an acute triangle?
A straight path of points that goes on endlessly in both directions.
What is a line?
What is a central angle?
Two lines that never cross.
What are parallel lines?
This is formed when two rays share the same endpoint.
What is an angle?
This type of triangle with angle measures of 120 degrees, 50 degrees, and 10 degrees.
What is an obtuse triangle?
A part of a line that goes on endlessly in one direction
What is a ray?
The measure of the radius of a circle whose diameter is 12 cm.
What is 6 cm?
Two lines that form 90 degree angles
What are perpendicular lines?