1st Semester Geometry Vocabulary

Coplanar lines that no not cross...

• intersecting lines

• perpendicular lines

• adjacent lines

• parallel lines

Lines that intersect at right angles to form a right angle

• parallel lines

• perpendicular lines

• points

• intersecting lines

Points that lie on the same line are called ___________________________________.

• collinear points

• noncollinear points

• defined terms

• endpoints

Tags

CCSS.HSG.CO.A.1

Triangle that has no congruent sides

• Equilateral Triangle
• Scalene Triangle
• Isosceles Triangle
• Acute Triangle

Tags

CCSS.4.G.A.2

Triangle Sum Theorem says that the sum of the measures of the interior angles of a triangle is... 

• 90*

• 180*

• 360*

• 270*

Two angles that form a straight angle equal to 180*

• Linear Pair

• Exterior Angle

• Vertical Angles

• Congruent

Triangle that has at least two congruent sides

• Isosceles Triangle

• Scalene Triangle

• Acute Triangle

• Obtuse Triangle

Triangle that has three congruent sides

• Equilateral Triangle
• Acute Triangle
• Equiangular Triangle
• Exterior Angle

Tags

CCSS.4.G.A.2

A specific case that shows a conjecture is false is called a _______________________________.

• Counterexample
• Conjecture
• Inverse
• Negation

This statement switches the hypothesis and conclusion of the conditional statement._________________

• Converse

• Inverse

• Contrapositive

• Negation