Question

6 Geometry questions, please correct my incorrect answers

Answer 1

1. Which of these transformations are isometries? The diagrams are not to scale.

Answer 2

(I) parallelogram EFGH-->parallelogram XWVU

Answer 3

(II) hexagon CDEFGH---> hexagon YXWVUT

Answer 4

(III) triangle EFG--> triangle VWU

Answer 5

A. I only
B. II and III only****
C. I and III only
D. I, II, and III

Answer 6

2. Which image is the translation of ABC given by the translation rule (x, y)---> (x-2, y+2)?

Answer 7

I think the answer is the 3rd picture (Geom 7)

Answer 8

3. Which graph shows a triangle and it's reflection image across the x-axis?

I think the answer is the 2nd picture (Geom 10)

Answer 9

4. The hexagon GIKMPR and FJN are regular. The dashed line segments form 30 degree angles.

What is the image of segment ON after a rotation of 180 degrees?
A. Segment ON
B. Segment OH****
C. Segment OJ
D. Segment OL

Answer 10

5. The hexagon GIKMPR and FJN are regular. The dashed line segments form 30 degree angles.

What is the angle of rotation about O that maps segment PQ to Segment RF?
A. 240 degrees
B. 210 degrees****
C. 90 degrees
D. 300 degrees

Answer 11

6. How many lines of symmetry does the figure have?
A. 2
B. 3
C. 4
D. 6****

Answer 12

I think the answers are:
1. B
2. 3rd picture (Geom 7)
3. 2nd picture (Geom 10)
4. B
5. B
6. D
(Please correct me if I'm wrong.)

Answer 13

Notice that you're not getting responses? I suspect it's because you're listing 12 questions in one post. Come on. Would you answer questions if there were 12 of them in one post?

One per post, please.

Answer 14

Miscounted the number of your questions, sorry. But you've still got far too many qu. in one post. Choose the question you want help with first, and post only that question and its parts (if there are multiple parts to it).

Answer 15

@pooja195 @Hero @jim_thompson5910 @Nnesha @wolf1728 @YanaSidlinskiy

Answer 16

@DanJS ill just tag you here. these are all the questions with my thoughts on the answers

Answer 17

The first one looks good, isometries in a translation means all the distanced remain the same. You can rotate,translate,reflect, because the size doesn't change, distances remain the same.

a dilation however, zooms in or out, and the size and distances change

Answer 18

so #1 is correct @DanJS ?

Answer 19

I went by the answers with the ** next to them. All look right except one..

Answer 20

5. The hexagon GIKMPR and FJN are regular. The dashed line segments form 30 degree angles. What is the angle of rotation about O that maps segment PQ to Segment RF?

Answer 21

Angle measures and rotations you measure moving in counter clock wise motion.

side PQ needs to rotate 300 degrees to line up to RF

Answer 22

So I was incorrect on only one question which was question #5 and the correct answer for it is D?

Answer 23

yep

Answer 24

Thank you @DanJS for helping me correct my work.

Answer 25

welcome, this site is closing in like a month, make an account here
http://questioncove.com/study#/groups/Mathematics

someone made a clone site i guess

Answer 26

can you check 2 more questions for me @DanJS ?

Answer 27

sure , just post a new question

Answer 28

thread