Classify Triangles (Angles)

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are less than 90 degrees.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle equal to 90 degrees.

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle where one angle is greater than 90 degrees.

Front

Classify a triangle with angles measuring 30°, 60°, and 90°.

Back

Right triangle.

Front

Classify a triangle with angles measuring 100°, 40°, and 40°.

Back

Obtuse triangle.

Front

Classify a triangle with angles measuring 50°, 60°, and 70°.

Back

Acute triangle.

Front

What is the sum of the angles in any triangle?

Back

The sum of the angles in any triangle is always 180 degrees.

Front

If a triangle has one angle measuring 95°, what type of triangle is it?

Back

Obtuse triangle.

Front

If a triangle has angles measuring 45°, 45°, and 90°, what type is it?

Back

Right triangle.

Front

What type of triangle has all sides equal?

Back

An equilateral triangle, which is also acute.