properties of parallel lines and transversals
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Properties of Parallel Lines and Transversals. Bell Work. Find the missing angles in the diagram and give reasons for your calculations using vocabulary terms. *These images are at the bottom of yesterday ’ s note sheet. Assignment Check. Supplementary angle Complementary angle

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Presentation Transcript
bell work
Bell Work

Find the missing angles in the diagram and give reasons for your calculations

using vocabulary terms.

*These images are at the bottom of yesterday’s note sheet.

assignment check
Assignment Check
  • Supplementary angle
  • Complementary angle
  • Vertical angles
  • Adjacent angles
  • Angle bisector
  • Vertical angles
  • Adjacent Angles
  • Yes- they from the “x” across from each other
  • Yes- tick marks (shows congruence)
  • a) x = 5 <WXY = 28 b) <YXZ = 28 c) <WXZ = 56
assignment check continued
Assignment Check Continued
  • X = 9 <PQS = 54
  • X = 14 <PQS = 50
  • Pictures will vary
warm up
Warm Up
  • Use the diagram at the right to determine x and y given that AB and CD are straight lines.
  • Name a pair of vertical angles.
  • Find the measure of <BOF. Justify your calculation.
learning goal
Learning Goal

Today you will understand that when parallel lines are cut by a transversal, angle pairs are congruent or supplementary.

today will you need
Today will you need…
  • Vocabulary note sheet
  • Yesterday’s note sheet
  • Last night’s homework
  • Pencil
congruent or supplementary
Congruent or Supplementary?

If m1 = 100, what are the measures of 2 through 8?

m2 =

m3 =

m4 =

m5 =

m6 =

m7 =

m8 =

assignment check2
Assignment Check
  • <1 = 137 2. m<1 = 45 (same side interior angles)

<2 = 43 m<2 = 135 (supplementary angles/linear pair

<3 = 137

<4 = 137 3. m<1 = 65 (supplementary/linear pair)

<5 = 43m<2 = 115 (corresponding angles)

<6 = 43

<7 = 137 4. m<1 = 105

same side interior angles

slide19

In the diagram, bisects WXZ.

a. Solve for x and find mWXY.

b. Find mYXZ.

c. Find mWXZ.

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