Parallel and Perpendicular Lines

Vocabulary

100

3.

Transversal

200

7.

Same-side Interior Angles

300

2.

Same-side Exterior Angles

400

4.

Remote Interior Angles

500

5. AND 6.

Corresponding Angles & Alternate Interior Angles

Parallel Lines and Proving Lines

100

8. a

42

200

8. c

138

300

8. b

42

400

9.

16

500

10.

50 and 50

Parallel Lines and Triangle Angle-Sums

100

11.

56

200

14.

26

300

12.

135

400

13.

49

500

15.

142

Slopes of Parallel and Perpendicular Lines

100

What is the most  important piece of information when comparing two lines to determine if they are parallel and perpendicular?

Slope

200

19.

Parallel: y=-3x+13

Perpendicular: y=1/3x+19/3

300

16.

No, slope of p: 2; slope of q: 7/3

400

17.

No, slope of w:1/3; slope of t: -5/2

500

18.

Vertical lines have an undefined slope

No calculator!

100

12x8

96

200

5(6+2)

40

300

14x12

168

400

3.8x2

7.6

500

(3/4)(12)+(6/5)(20)

33