Triangles
Vocabulary
Angles
100

I have an angle that measures exactly 90 degrees. What triangle am I? 

Right triangle 

100

Reflections flip over a _______ line. 

Vertical 

100

I measure less than 90 degrees. What angle am I? 

Acute 

200

I have two acute angles, and one obtuse. What triangle am I? 

Obtuse

200

Clockwise moves to the _______.

Right

200

I measure more than 90, but less than 180. What angle am I? 

Obtuse
300

All my angles measure less than 90 degrees. Which triangle am I? 

Acute triangle

300

Counter-clockwise moves to the ______.

Left

300

I measure exactly 180 degrees. What angle am I? 

Straight

400

Max drew a triangle. One angle measured 30 degrees. Another angles measured 65 degrees. The third angle measured 91 degrees. What type of triangle did Max create? 

Obtuse triangle 

400

_________________ 

Is this line vertical or horizontal? 

Horizontal 

400

A right angle measures exactly ___ degrees. 

90

500

What statement is true about a right triangle? 

a. I have one acute angle 

b. I have two obtuse angles

c. I can be an obtuse triangle 

d. I have two acute angles

D

500

Same shape, same size, refers to what mathematical term?

Congrunt or congruence 

500

Draw me. Be careful, I'm an obtuse angle!

<BAC

Teacher draws correct answer on the board.