CH 1 TEST GEOM

A plane is named by...

• Any 1 point on the plane.
• Any 3 collinear points on the plane or a lowercase script letter.
• Any 3 non-collinear points on the plane or an uppercase script letter.
• All points on the plane that aren't part of a line.

Name 4 collinear points

• HMNO
• IKNO
• MJOL
• HNKI

An example of 2 non-collinear points.

• D, E
• C, B
• M, E
• F, B

What do you call lines, rays, segments, or planes that create 90 degrees angles at their intersection points? 

• Perpendicular
• Parallel
• Vertical
• Skew

Vertical angles are always

• acute
• total 180 degrees
• congruent (equal measures)
• adjacent angles

What are complementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect.

What are supplementary angles?

• Angles that add up to 180°
• Angles that add up to 90°
• Angles that are equal to each other
• Angles that are opposite of each other when lines intersect

• x=3/17

• x=9

• x=3

• x= -3

Find the missing angle.

• 43

• 47

• 57

• 67

What is the measure of the missing angle?

• 92
• 102
• 82
• 72