Naming Triangles and Congruence Parts

Classify this triangle by its sides.

• equilateral

• scalene

• isosceles

Classify this triangle by its sides and its angles. 

• obtuse scalene

• equilateral equiangular

• acute right

• right isosceles

Classify this triangle by its sides and angles. 

• obtuse scalene

• acute scalene

• equilateral equiangular

• acute isosceles

Classify this triangle by its sides and angles. 

• right isosceles

• acute scalene

• obtuse scalene

• acute isosceles

Name the corresponding angle or side.

• A

• B

• C

• D

If ΔDEF ≅ ΔRST, then we can conclude that ∠T ≅ ____.

• ∠F

• ∠E

• ∠D

• EF

Classify this triangle by its sides and angles. 

• right isosceles

• obtuse scalene

• equilateral equiangular

• obtuse isosceles

Select the letter that represents a right isosceles triangle. 

• A

• B

• C

• D

Classify this triangle by its sides and angles. 

• obtuse scalene

• equilateral equiangular

• right isosceles

• obtuse equilateral

Classify this triangle by its sides and angles. 

• right scalene

• obtuse equilateral

• right isosceles

• obtuse isosceles