Classifying Triangles / Triangle Sum Theorem

Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle

Find the measure of the missing angle.

• 90^o

• 10⁰

• 130^o

• 50^o

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

Classify by side length

• Acute

• Isosceles

• Right

• Equilateral

Classify this triangle by Angles and Sides

Choose all that apply.

• ACUTE

• OBTUSE

• ISOSCELES

• SCALENE

Tags

Classify Triangles by Side and Angle

A triangle with no equal sides is what type of triangle?

• scalene

• acute

• isosceles

• equilateral

Tags

Classify Triangles by Side and Angle

A triangle with the the largest angle equal to 90 degrees is what type of triangle?​ (a)  

• right

• obtuse

• acute

• equiangular

Tags

Classify Triangles by Side and Angle

What type of triangle has all three sides of equal length?

• scalene

• acute

• isosceles

• equilateral

Tags

Classify Triangles by Side and Angle

What type of triangle has two sides of equal length?

• scalene

• acute

• isosceles

• equilateral

Tags

Classify Triangles by Side and Angle

Classify this triangle by Angles and Sides

Choose all that apply.

• scalene

• obtuse

• isosceles

• acute

• equilateral

Tags

Classify Triangles by Side and Angle