Classifying Triangles by Sides and Angle Measures

Name this triangle by its sides

• scalene

• isosceles

• equilateral

• acute

Name this image by its angles.

• acute

• obtuse

• right

• equiangular

Name this triangle by its sides.

• scalene

• isosceles

• equilateral

• obtuse

Name this triangle by its angles, pick all that apply

• acute

• obtuse

• right

• equiangular

Name this triangle by its angle and sides.

• acute, scalene

• obtuse scalene

• right, scalene

• right, isosceles

Name this triangle by its angles and sides.

• acute, scalene

• acute, isosceles

• obtuse, equilateral

• equiangular, equilateral

Name this triangle by its angles and sides.

• acute, scalene

• acute, isosceles

• acute, equilateral

• right, scalene

Name this triangle by its angles and sides.

• acute, isosceles

• obtuse, scalene

• right, isosceles

• equiangular, equilateral

If all of the sides are congruent then all of the angles must also be congruent.

• true

• false

What would the measure of the third angle equal?

(Reminder: all 3 angles add up to 180 degrees)

• 125 degrees

• 55 degrees

• 43 degrees

• 39 degrees