All Lines
One Dimension
Construction
100

A perfect round shape, no edges or lines,

 It’s the kind of shape that always shines!

A circle!

100

A  dot, with no width or height, marks a place, but it's never in sight!

A point!

100

I am built by two identical circles, intersecting in their centers and forming a triangular shape.

Equilateral Triangle

200

Four equal sides, all straight and neat,

 a perfect shape, so clean and complete!

A square! 

200

I have two ends, no curves or bends. I don’t go on; it stops just right—A straight little path, in plain sight!

A line segment!

200

I divide a line segment into two equal parts.

Midpoint

300

Lines meet just right; they form a corner, sharp and tight. At ninety degrees, they cross so clean, like a perfect ‘T’ in a math machine!

Perpendicular Lines!

300

I go forever and more, extending both ways, with no end to the shore!

A line!

300

What do you call a figure inside a circle?

Inscribed

400

Six sides make this shape quite strong,

 a honeycomb pattern where bees belong!

A hexagon!

400

I start at a point and go on for miles, with only one direction and no curves or trials!

A ray!

400

Two figures that have identical shape and size are called...

Congruent figures

500

Lines run side by side,
No matter how far, they never collide.
They march along, always in sync,
No curves, no turns, no crossing link

Parallel Lines! 

500

I mark the start and the end, on a line or segment, they both defend. Where it begins and where it’s through, these are the points that guide you true!

Endpoints

500

I intercept a line segment at a right angle and pass through the midpoint of the segment.

Perpendicular Bisector