Classifying Triangles

In a triangle, how many total degrees are there?

• 100%
• 180 degrees
• it varies
• 360 degrees

.
.
.
.
What is the name of this kind of triangle?

• Right
• Isosceles
• Scalene
• Equilateral

.
.
.
.
What is the name of this kind of triangle?

• Right
• Scalene
• Isosceles
• Equilateral

.
.
.
What is the name of this kind of triangle?

• Right
• Scalene
• Isosceles
• Equilateral

What kind of triangle is this?

• Acute
• Right
• Sparkly
• Obtuse

How many acute angles must an acute triangle have?

• 2
• 1
• 4
• 3

Find the measure of the indicated angle. 

• 95
• 85
• 35
• 45

Find the measure of the indicated angle. 

• 26
• 36
• 85
• 144

A triangle has two 71° angles and one 38° angle. Is this triangle isosceles?

• yes 
• no

A triangle has angle measurements of 27°, 72°, and 81°. What kind of triangle is it?

• acute triangle
• right triangle
• obtuse triangle
• none of the above