Identify Right Obtuse Acute Triangles with Inequality

Use the angles to classify the triangles

all angles less than 90° - acute triangle

1 angle is equal to 90° - right triangle

1 angle is greater than 90° - obtuse triangle

Use the angles to classify the triangles

Use the angles to classify the triangles

Use the angles to classify the triangles

Classify this triangle.

• right

• acute

• obtuse

Classify this triangle.

• Acute

• Obtuse

• Right

Use the angles to classify the triangles

Use the angles to classify the triangles

Find b.

What type of triangle is shown?

• acute

• obtuse

• right