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4th grade math

geometry and spatial reasoning

When two rays meet at a common endpoint, they form an ___. angle
An angle with a measure of 90 degrees. right angle
A triangle with all three angles less than 90 degrees. acute triangle
An angle with a measure greater than 0 degrees and less than 90 degrees. acute angle
An angle that measures greater than 90 degrees but less than 180 degrees. obtuse angle
A triangle with one obtuse angle. obtuse triangle
Lines that meet or cross each other to form right angles. perpendicular lines
Lines that are the same distance apart. They do not meet. parallel lines
Created by: Promethean