Angle Relationships

What types of angle is this?

• Obtuse

• Acute

• Right

• Straight

What type of angle is this?

• Acute

• Straight

• Right

• Obtuse

Is this a right angle?

• Yes. It looks like it is so we'll just call it close enough.

• No, it's probably really close but it doesn't have the boxy thing in the corner. It could be 89.2 degrees or 90.7 degrees. My inferior human senses cannot tell.

Angle A is right, Angle B is straight. What is the measure of each angle?

• A = 45; B = 90

• A = 180; B = 360

• A = 90; B = 180

• A = 50; B = 100

When added together Angle BAD and Angle DAN equal 90 degrees. What is true about these two angles?

• They are supplementary

• They are complementary

• They are vertical

• They are congruent

When added together Angle RAD and Angle DAN equal 180 degrees. What is true about these two angles?

• They are vertical

• They are complementary

• They are congruent

• They are supplementary

These are two straight lines which intersect each other. What is true about Angle B and Angle R?

• They are vertical angles

• They are supplementary angles

• They are complementary angles

• They are a linear pair

Vertical angles are...

• Adjacent to each other

• Equal (congruent) to each other

• Supplementary to each other

• The opposites of each other

Estimate the angle measure for angle DEF

• 90

• 120

• 10

• 75

Estimate the Angle Measure for angle MAN

• 10

• 45

• 90

• 115