Classify Triangles

• acute

• obtuse

• right

• equilateral

• isosceles

• scalene

• equilateral

• isosceles

• scalene

• equilateral

• isosceles

• scalene

A triangle has side lengths of 15 centimeters, 11 centimeters, and 9 centimeters. What kind of triangle is it?

• equilateral

• isosceles

• scalene

Name this triangle.

• Right, Isosceles

• Scalene, acute

• Isosceles, acute

• Equilateral, obtuse

Classify this triangle by its sides and angles. 

• right isosceles

• obtuse scalene

• equilateral equiangular

• obtuse isosceles

Select the letter that represents  an obtuse scalene triangle. 

• A

• B

• C

• D

Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle

Name this triangle

• A

• B

• C

• D