Classifying Triangles

In a ____________ triangle one angle is exactly 90 degrees.

• acute

• right

• obtuse

• 360 degrees

In an ___________ triangle one angle is greater than 90 degrees.

• acute

• right

• obtuse

• 360 degrees

A triangle has angle measurements of 26°, 59°, and 95°. What kind of triangle is it?

• acute triangle

• right triangle

• obtuse triangle

• none of the above

A triangle has angle measurements of 74°, 90°, and 16°. What kind of triangle is it?

• acute triangle

• right triangle

• obtuse triangle

• none of the above

If a triangle has one angle greater than 90° and no equal sides, what type of triangle is it?

• Acute Isosceles

• Acute Scalene

• Obtuse Scalene

• Obtuse Isosceles

Look at the sides of this triangle. What type of triangle is this?

• Equilateral

• Isosceles

• Scalene

• Obtuse

Name these triangles for their angles.

• acute

• right

• obtuse

Identify the triangle by its sides and angles.

• Obtuse Equilateral

• Obtuse Isosceles

• Isosceles

• Acute Scalene

Identify the triangle by its sides and angles

• Right Isosceles

• Right Scalene

• Right Equilateral

Identify the triangle by its sides and angles

• Equilateral

• Obtuse Equilateral

• Acute Equilateral

• Acute Isosceles