Acute
Obtuse
Right
Vocabulary
Bonus
-500
On your dry erase board, draw an acute angle.
<
-500
On your dry erase board, draw an obtuse angle.
_/
-500
Draw a right angle on your dry erase board.
L
-500

What is a protractor? 

A protractor is used to measure angles in degrees.

-500
A straight angle measures how many degrees?
180 degrees
200

True or False: An acute angle is less than a right angle?

True

200

True or False:

An obtuse angle is less than a right angle?

False

200

What degree amount does a right angle measure?

90 degrees, exactly

200

We measure angles in _________. (It is the symbol we draw at the top right of the number)

Degrees

200

When is Mrs Lunn's birthday? 

October 27

300

Look around the classroom and tell me something that has an acute angle in it.

The clock, the stars on the flag, the flag on the back of the board, the small angle on the legs of my desk.

300
How is an obtuse angle different from a straight angle?
An obtuse angle measures less than 180 degrees. A straight angle measures exactly 180 degrees.
300

Name an object that is a right angle.

Corner of a desk

Window 

Computer

Paper

300

The point where two rays come together is called: 

A) Acute

B) Vertex

C) Right

D) Angles 

Vertex

300

What is the vertex of an angle?

The middle point that connects 2 arms.

400
What is the difference between an acute and obtuse angle?
Acute angles measure less than 90 degrees. Obtuse angles measure greater than 90 degrees.
400
What is the difference between a right angle and an obtuse angle?
A right angle measures 90 degrees, an obtuse angle measures greater than 90 degrees.
400

How are right angles labeled?

Right angles are labeled with a perfect square in the corner of the shape with a right angle.

400

What is the name of an angle that measures exactly 90 degrees?

a Right angle

400

How sort of angles are on the Christmas tree star?

Obtuse

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