Classifying by Sides
Triangle Art
Classifying by Angles
Lines
Riddles
100

I have 3 equal sides.

equilateral triangle

100

Draw an acute triangle.

Show your art

100

A triangle with all angles < 90 degrees.

acute triangle

100

What do we call 2 lines that will never intersect?

parallel lines

100

You cut me, slice me, dice me, and all the while, you cry. What am I?

an onion 

200

A triangle with at least 2 equal sides.

isosceles triangle

200

Draw an obtuse triangle.

Show teacher

200

A triangle with one angle > 90 degrees.

obtuse triangle

200

What do we call 2 lines that pass through the same point?

intersecting lines

200

What kind of apples do computers prefer?

Macintosh 

300

A triangle with no equal sides.

scalene triangle

300

Draw an equilateral triangle.

Show teacher triangle with all angles equal

300

A triangle with one angle measuring exactly 90 degrees.

right triangle

300

What do we call lines that intersect to form a right angle?

perpendicular lines

300

What do you call a cat who loves to swim?

a catfish 

400

Classify the black triangle by it's sides. 

Isosceles triangle 

400

Draw a triangle with perpendicular lines.

right triangle

400

A triangle with the following angle measurements: 97 degrees, 40 degrees, and 43 degrees.

obtuse triangle

400

Draw a set of parallel lines.

Show me your work.

400

How many eggs would a rooster lay over three weeks, provided it is adequately fed and housed?

Zero. Roosters do not lay eggs.

500

Classify the green triangle by side AND angle.

equilateral and acute 

500

Draw a triangle that is obtuse and scalene.

A triangle with an obtuse angle and no equal sides.

500

This triangle has one angle measuring 88 degrees.

acute triangle

500

Draw a set of intersecting lines.

Show me your work.

500

When I’m ripe, I’m green, when you eat me, I’m red, and when you spit me out, I’m black. What am I?

a watermelon