2nd Geometry

Lines/Segments/Points

100

Shows or demonstrates one spot in space. This looks like a dot.

What is a point?

200

I start with a point and end with a point.

What is a segment?

300

I start with a point and continue in one direction to infinity.

What is a ray?

400

It takes two of me to make an angle.

What are rays?

500

I have not start or stop point and go on forever in two directions. I am also straight.

What is a line?

Quadrilaterals

100

I have 4 sides of any length.

What is a quadrilateral?

200

I have 4 equal sides and 4 90 degree angles.

What is a square?

300

I have opposite sides that are the same length and 4-90 degree angles.

What is a rectangle?

400

I can look like a lamp shade; I have only 1 pair of parallel sides.

What is a trapezoid?

500

I have two pair of parallel sides. I resemble a squashed rectangle.

What is a parallelogram?

Triangles

100

I have three sides and three angles.

What is a triangle?

200

I am a special triangle with one right angle (90 degrees).

What is right triangle?

300

I have three angles that measure 60 degrees each and 3 equal sides.

What is an equilateral triangle?

400

I have no equal sides.

What is a scalene triangle?

500

I am a triangle that has two equal sides.

What is an isosceles triangle?

Angles

100

Two of these make me.

What are rays?

200

This is what you call the point where my rays join.

What is the vertex?

300

I measure more than 0 but less than 90 degrees.

What is an acute angle?

400

I have exactly 90 degrees.

What is a right angle?

500

I measure more than 90 and less than 180 degrees.

What is an obtuse angle?

Other Shapes

100

I have 5 sides.

What is a pentagon?

200

I have 6 sides.

What is a hexagon?

300

I have eight sides.

What is an octagon?

400

I have no sides and can roll on.

What is circle?

500

I have 6 squares that form my faces. I am a 3-D shape. My name starts with a C.

What is a cube?