Geometry Chapter Big Ideas

Name 4 collinear points

• HMNO
• IKNO
• MJOL
• HNKI

Points that lie on the same plane are ________. 

• collinear
• coplanar
• parallel
• perpendicular

When naming a plane, we should use ________

• 2 points
• a lower case cursive letter
• 3 points
• 3 noncollinear points

Find the value of x.

• 15

• 16

• 18

• 19

Solve for x

• 20

• 25

• 120

• 180

If m∠1 = 30°, then m∠3 = 

• 30°
• 60°
• 150°
• undetermined

CHALLENGE: Find the values of x and y.

• x=7 ; y=25
• x=5 ; y=25
• x=7 ; y=5
• x=5; y=5

2. FIND ∠SOR

• 45
• 135
• 90
• 180

1. Find X 

• 28
• 5
• 55
• 40

∠1 and ∠2 are _____________

• Complementary

• Supplementary

• Adjacent

• Vertical