Geometry Topic 1-1 to1-3 Measuring Segments and Angles

What does the symbol ⊥ mean?

• Perpendicular - two lines that form right angles
• Congruent - equal in length

What does the symbol m∠A mean?

• The measure of angle A.
• m is less than A

What is the vertex of ∠ART?

• ∠A
• ∠R
• ∠T

What does the symbol AB mean?

• The length of AB.
• Ray AB
• Segment AB
• Line AB

A midpoint divides a segment into two congruent __________.

• angles
• segments
• rays

• x=67
• x=43
• x=55
• x=12

• x=3/17
• x=9
• x=3
• x= -3

Tags

CCSS.HSG.CO.C.9

Hint: These angles are not drawn to scale, but we do know these angles form a right angle... Choose the correct equation.

• 2x-6=7x+4

• 2x-6+7x+4=90

• 2x-6+7x+4=180

• 2x-6+7x+4=360

Write the equation that fits the diagram and solve for x.

•  $2x\ +6x\ +\ 20\ =\ 180$  ;  x = 25

•  $2x\ +\ 6x\ +\ 20\ =\ 90$  ; x = 8.75
  

•  $2x\ +\ 6x\ +\ 20\ =\ 180$  ; x = 20
  

•  $2x=6x+20$  ; x = -5
  

Answer explanation

Linear pairs of angles are supplementary

Solve for x

• 15
• 16
• 18
• 19

Tags

CCSS.7.G.B.5