Geometry 7th grade (mid unit 4)

Complementary angles

• add to 90 degrees.
• add to 180 degrees.
• make a straight angle.

Supplementary angles

• add to 90 degrees.
• add to 180 degrees.
• make a right angle.

Right angles

• equal 180 degrees.
• equal 90 degrees.

Straight angles 

• equal 180 degrees.
• equal 90 degree.

Vertical angles 

• are similar in size and shape.
• are straight angles.
• are congruent (or equal) in size and shape.

Perpendicular lines 

• are complementary,
• create 2, 90 degree angles.
• are vertical.

Find ?

• 35 degrees
• 137 degrees
• 145 degrees

Find the measure of angle A

• 30

• 8.37

• 50

A triangle has sides measures 7, 7, 14. Does this form a triangle?

• No triangle
• One unique triangle
• More than one triangle

A triangle has side lengths of 12, 7, 9. Does it form triangle?

• No triangle
• One unique triangle
• More than one triangle