Angles and triangles

What type of angle is this?

What type of angle is this?

What is the measure of the missing angle?

What are the attributes of a right triangle?

• 3 right angles

• 2 right angles

• 1 right angle, 1 acute angle

• 2 acute angles, 1 right angle

What are the attributes of a acute triangle?

• 3 acute angles

• 2 acute angles, 1 obtuse angle

• 1 acute angle, 2 right angles

• 3 acute angles, 1 right angle

• 90
• 140
• 180
• 50

Name the corresponding angle to angle 4.

• angle 8
• angle 6
• angle 2
• angle 5