Geometry Vocabulary

An endless flat surface.

• parallelogram

• plane

• line

• intersecting lines

Tags

CCSS.4.G.A.1

Lines pass through each other and create square corners or right angles.

• Parallel Lines

• Intersecting Lines

• Perpendicular Lines

• Line Segments

Tags

CCSS.HSG.CO.A.1

A quadrilateral that has four right angles and opposite sides are equal in length.

• Square

• Parallelogram

• Rhombus

• Rectangle

Tags

CCSS.5.G.B.4

The type of angle that has a larger opening than a ninety-degree angle.

• Obtuse Angle

• Right Angle

• Acute Angle

Tags

CCSS.4.G.A.1

The type of angle that has a smaller opening than a ninety-degree angle.

• Obtuse Angle

• Right Angle

• Acute Angle

Tags

CCSS.4.G.A.1

A type of triangle with all equal sides.

• Acute Triangle

• Obtuse Triangle

• Equilateral Triangle

• Right Triangle

Tags

CCSS.4.G.A.2

A marked location on a line.

• Plane

• Point

• Line Segment

• Line

Tags

CCSS.4.G.A.1

A quadrilateral with two sets of parallel lines.

• Triangle

• Parallelogram

• Quadrilateral

• Trapezoid

Tags

CCSS.4.G.A.2

Lines that travel in the same direction and never intersect.

• Intersecting Lines

• Perpendicular Lines

• Parallel Lines

• Line Segment

Tags

CCSS.HSG.CO.A.1

A _______ angle forms a 90 degree angle.

Tags

CCSS.4.G.A.1