Geometric Terms

a part of a line with two endpoints

• line
• line segment
• ray
• point

Tags

CCSS.HSG.CO.A.1

an exact location in space

• line 
• line segment
• ray
• point

Tags

CCSS.4.G.A.1

a straight path that goes on forever in two directions

• line
• line segment
• ray
• point

Tags

CCSS.4.G.A.1

a straight path that begins at a point and goes on forever in one direction

• line
• line segment
• ray
• point

Tags

CCSS.4.G.A.1

two rays that meet at the same point

• intersecting lines
• parallel lines
• perpendicular lines
• angle

Tags

CCSS.4.G.A.1

CCSS.4.MD.C.5

lines that cross over each other

• parallel lines
• intersecting lines
• perpendicular lines
• angle

Tags

CCSS.4.G.A.1

line that form a right angle at the point that they cross

• intersecting lines
• parallel lines
• perpendicular lines
• angle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

lines that do not cross

• parallel lines
• intersecting lines
• perpendicular lines
• angle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

an angle that measures exactly 90 degrees

• right angle
• acute angle
• obtuse angle
• straight angle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

CCSS.4.MD.C.5

an angle that measures greater than 0 degrees but less than 90 degrees

• right angle
• acute angle
• obtuse angle
• straight angle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2