Question

I'm in CA, Geometry A. I need the answers to Unit 3, Lesson 10 Parallel and Perpendicular lines test. Only have 4 days to finish everything & i'm behind so if anyone has the answers or could at least help I need it ASAP!

Answer 1

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I'll do my best to help you though, if I can :)

Answer 2

Oh ok i'm sorry!

1. Which diagram suggests a correct construction of a line parallel
to given line 1 and passing through given point Q?

Answer 3

http://www.mathopenref.com/constparallel.html

Answer 4

I'm so confused :/

Answer 5

if you're using angle copy method, it would look more like option B
where there are two angles along the line going from line 1 to point Q

Answer 6

Okay thank you i'll try to figure it out. I'm not good at this kinda stuff ..

2. Find the value of x and y.
A. x=15,y=12
B. x=14,y=11
C. x=14,y=12
D. x=15,y=11

Answer 7

4x+2 and 62 are alternate interior angles and therefore they are equal. Solve for x.
12y and 144 are alternate interior angles and therefore they are equal. Solve for y.

Answer 8

opposite interior angles are congruent (equal to each other)
so
4x + 2 = 62
12y = 144

Answer 9

I'm not even sure how to solve for x and y honestly.... i'm so dumb.

Answer 10

don't be so pessimistic, I'm sure you'll be able to understand and learn how :)
for 4x + 2 = 62 subtract both sides by 2
so -2 -2 and you get
4x = 60 then divide both sides by 4
/4 /4
x = 60/4 = ___
then for y you would divide both sides by 12
so y = 144/12 = __

Answer 11

x=15 and x=12, is that right?

Answer 12

***x=15, and y=12

Answer 13

correct! :)

Answer 14

yayyy .

3. What is the relationship between angle 8 and angle 4?
A. corresponding angles
B. alternate exterior angles
C. same-side interior angles
D. alternate interior angles

Answer 15

by definition, they would be corresponding angles
http://www.mathsisfun.com/geometry/corresponding-angles.html

Answer 16

4. Which construction is illustrated above?
A. a perpendicular to a given line from a point on the line
B. a line segment congruent to a given line segment
C. the perpendicular to a given line from a point on the line
D. the perpendicular bisector of a line segment

Answer 17

Not B and D because there are no line segments involved...
the difference between A and C is "a perpendicular" and "the perpendicular"
(I'm not sure if this is right...but)
given one line and one point, there would be only one perpendicular.
therefore C

Answer 18

Thank you! My computer is about to die so I gotta get off :/ Can we continue later?

Answer 19

if I can :) have a nice day :)

Answer 20

You on?

Answer 21

I finished this myself! Got 9/12 for the multiple choice questions and waiting on the teacher to grade the type in questions. Thank you for helping :) Gonna close this question.