Question

Are the two polygons similar? Explain why.

Answer 1

http://curriculum.kcdistancelearning.com/courses/GEOMx-HS-A09/b/assessments/S-SimilarityUnitExam/Geometry_6_Exam_Final_NK_051209_q70.gif

Answer 2

If only there was a way to tell if two quadrilateral polygons were similar or not..

Answer 3

.......I thought AA postulate but i get similar and congruent confused

Answer 4

??

Answer 5

They have the same angles in each quadrilateral. So I would say that they are similar.

That is just my gut talking.

Answer 6

Ok thank you

Answer 7

actually now that I think about it, what stamp said is partially correct

say you had these two rectangles



they both have the same angles (all equal to 90 degrees), but they are NOT similar quadrilaterals

you need

a) corresponding angles to be congruent

and

b) corresponding sides to be in proportion (or form the same ratio)

in order for two polygons to be similar

Answer 8

Wait so they aren't similar?

Answer 9

yes all corresponding angles are equal, but we don't have any info about the side lengths

so we can't say whether they are similar or not

Answer 10

if we knew all the sides, then we could figure that out

Answer 11

So what do i answer?

Answer 12

does it give you any lengths

like AD, or AB

Answer 13

No I put a link for the only picture I got

Answer 14

then unfortunately there isn't enough info to say whether they are similar or not

Answer 15

do you see what I'm saying though?

Answer 16

yes

Answer 17

you could easily argue either way if you had no idea what the side lengths were

if the corresponding side lengths were proportional or congruent, then you could say for certain that the two figures are similar

if you found that the side lengths weren't proportional, then you can say that the two figures aren't similar

Answer 18

I'm just going to put that they are similar so I can move on

Answer 19

sounds like a good idea

Answer 20

How could they form the same angles but not be proportional?

Answer 21

say we had this