Classify Triangles by Side and Angle

An isosceles triangle has: (select two answers)

• three equal angles

• two equal side lengths

• four equal side lengths

• two equal angles

If all three angles are exactly the same measure, how big is each angle?
Hint:    x + x + x  = 180

• 180 degrees

• 90 degrees

• 50 degrees

• 60 degrees

How many equal sides does an equilateral have?

• 1

• 2

• 3

• 4

Look at the sides and angles of this triangle. Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle

Look at the sides and angles of this triangle. Which type of triangle is pictured?

• Equilateral Triangle

• Scalene Triangle

• Isosceles Triangle

• Right Triangle

Classify by sides

• Right

• Isosceles

• scalene

• equilateral

Classify by side.

• Isosceles

• Scalene

• Equilateral

Classify by sides and angles.

• A

• B

• C

• D

Classify by sides and angles.

• A

• B

• C

• D

Find the missing angle. 

• 151

• 147

• 118

• 62