Classifying Angles and Lines Test

Which triangle is a right triangle?

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Select any obtuse triangles.

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A(n) _________ is a triangle where all angles are less than 90 degrees.

A(n) _________ triangle is a triangle with an angle that is exactly 90 degrees.

A(n) __________ is a triangle with an angle larger than 90 degrees.

A right triangle is...

• a triangle with a 90 degree angle

• a triangle with all angles less than 90 degrees

• a triangle with an angle bigger than 90 degrees

An obtuse triangle is...

• a triangle with a 90 degree angle

• a triangle with all angles less than 90 degrees

• a triangle with an angle larger than 90 degrees

What type of triangle is this?

• Acute

• Right

• Obtuse

What type of triangle is this?

• Acute

• Right

• Obtuse

What type of triangle is this?

• Acute

• Right

• Obtuse