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Types of Angles
Types of Triangles
Calculating Angles
Measuring Angles
100
An angle that has a measure of 90 degrees.
What is a right angle?
100
This triangle always has one right angle.
What is a right triangle?
100

A right angle + 35 degree = 

What is 125 degrees?

100
I have an acute angle. When I line it up on the protractor, I see the numbers 80 and 100. this is my measure.
What is 80 degrees?
200
An angle that is less than 90 degrees.
What is an acute angle?
200
This triangle always has three sides that are equal in length.
What is an equilateral triangle?
200

I have one obtuse angle - 40 = 80 degrees. The obtuse angle is

What is 120 degrees?

200
I am an obtuse angle. When I meaure it with a protractor, I see 60 degrees and 120 degrees. This is my measure.
What is 120 degrees?
300
An angle that is greater than 90 degrees.
What is an abtuse angle?
300
This triangle has no sides with the same length.
What is a scalene triangle?
300

10 degrees more than a right angle

What is 100 degrees?

300
Look at the angle on the promethean. This is its measure.
What is 50 degrees?
400
An angle whose measure is 180 degrees.
What is a straight angle?
400
This is a triangle with three acute angles and three sides equal in length.
What is an acute, equilateral triangle?
400

80 degrees - 63 degrees = 

What is acute, 17 degrees?

400
Look at the angles on the promethean. This is their combined measure.
What is 125 degrees?
500
The type of angles that are made when a 100 degree angle is split in half.
What are two acute angles?
500
This is a triangle that has one angle that is greater than 90 degrees and two angles less than 90 degrees. It has only two sides equal in length.
What is an obtuse, isoceles triangle?
500

360 degrees - a straight angle + a right angle - a straight angle =

90 degrees

500
Look at the angles on the promethean. This is their measure and relationship.
What are 35 degrees and 55 degrees, 90 degrees and complementary?