Classifying Triangles

HOW DO YOU CLASSIFY A TRIANGLE USING ITS SIDE LENGTHS AND ITS ANGLE MEASURES?

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Use one of these vocab words to classify a triangle using its SIDE LENGTHS.

Multiple Choice

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

• scalene

• acute

• equilateral

• isosceles

Use one of these vocab words to classify a triangle using its SIDE LENGTHS.

Multiple Choice

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

• Equilateral

• Isosceles

• Scalene

• Obtuse

Use one of these vocab words to classify a triangle using its SIDE LENGTHS.

Multiple Choice

What type of triangle is shown?

• Isosceles

• Right-angled

• Equilateral

• Scalene

​Use one of the following vocab words to classify a triangle by its

ANGLE MEASURES.

Multiple Choice

In an ______________ triangle, all three angles are less than 90 degrees.

• acute

• right

• obtuse

• 360 degrees

​Use one of the following vocab words to classify a triangle by its

ANGLE MEASURES.

Multiple Choice

In a ____________ triangle one angle is exactly 90 degrees.

• acute

• right

• obtuse

• 360 degrees

​Use one of the following vocab words to classify a triangle by its

ANGLE MEASURES.

Multiple Choice

What kind of triangle is this?

• acute

• right

• obtuse

• 360 degrees

​Use one of the following vocab words to classify a triangle by its

ANGLE MEASURES.

Multiple Choice

A triangle has angle measurements of 54°, 52°, and 74°. What kind of triangle is it?

• acute triangle

• right triangle

• obtuse triangle

• none of the above

​Use one of the following vocab words to classify a triangle by its

ANGLE MEASURES.

Multiple Choice

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

Multiple Choice

Look at the sides and angles of this triangle. Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle

Multiple Choice

If a triangle has all angles less than 90° and two equal sides, what type of triangle is it?

• Acute Isosceles

• Acute Scalene

• Obtuse Scalene

• Obtuse Isosceles

You may redo this quiz until you get a good grade.

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