Geometry Vocabulary Review Flashcards
All sides are the same length
Equilateral Triangle
Two sides are the same length
Isosceles Triangle
All sides are different lengths
Scalene Triangle
One angle that is greater than 90 degrees
Obtuse Triangle
All angles are less than 90 degrees
Acute Triangle
One angle that is equal to 90 degrees
Right Triangle
A plane figure that has three straight sides and three angles.
Triangle
A triangle that has one angle that is greater than 90 degrees
Obtuse angle
A angle that has one angle that is equal to 90 degrees
Right angle
A triangle that has all angles that are less than 90 degrees
Acute angle
A straight line - two rays pointing in the opposite directions and it equals 180 degrees
Straight angle
Lines that form square corners when they intersect, they form right angles
Perpendicular lines
Part of a circle that represents an angle between two intersecting lines.
Arc
The point where two rays meet
Vertex
Two angles that form a right angle are called ______ angles that equal 90 degrees
Complementary angles