Geometry

Types of Lines

100

Lines or line segments that stay the same distance apart and never cross 

Parallel lines

200

Lines or line segment that meet or cross 

Intersecting lines

300

Lines or line segments that meet or cross at a right angle

Perpendicular lines

Points, Lines, and Rays

100

A particular place or location

Point

200

A straight path that is part of a line and has two endpoints 

Line segment 

300

A straight path that goes in 2 directions without end 

Line

400

A part of a line with an endpoint at one end and goes on forever in the other direction 

Ray

Types of Triangles

100

I am a triangle with 3 equal sides. Who am I?

Equilateral

200

I am a triangle with all sides of different lengths. Who am I? 

Scalene

300

I am a triangle with 2 equal sides. Who am I? 

Isosceles

Types of Angles

100

My angle measure is 90 degrees. What type of angle am I?

Right

200

My angle measure is 172 degrees. What type of angle am I?

Obtuse

300

My angle measure is 60 degrees. What type of angle measure am I? 

Acute

400

My angle measure is 180 degrees. What type of angle am I? 

Straight 

Quadrilaterals

100

I have 1 pair of parallel lines. Who am I? 

Trapezoid 

200

I have 2 pairs of parallel sides AND 4 sides of equal length. Who am I?

Rhombus

300

I have 2 pairs of parallel sides, 2 pairs of sides of equal length, AND 4 right angles. Who am I?

Rectangle

400

I have 2 pairs of parallel sides, 4 sides of equal length, AND 4 right angles. Who am I?

Square