Question

Which two triangles are similar?



A.
A and B

B.
B and C

C.
A and D

D.
A and C
http://static.k12.com/calms_media/media/1503500_1504000/1503541/1/40647c62c1e80590d95fa587611bcc11c31c9632/MS_IMC-140523-1309010.jpg

Answer 1

the definition for similar triangles are that in both triangles, all their angles are equal and the corresponding sides have the same ratio.
So looking at your diagram, which triangles do you think are similar? :)

Answer 2

B and D ? :D

Answer 3

C and D not B and D

Answer 4

hmmm not quite! Look again :)
Notice that in B and D, one has a smaller angle than the other:
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Not quite C and D because C has a right-angle, and D does not.

Answer 5

Hmm A and C then c:

Answer 6

that's correct :)
Do you see the matching angles?

Answer 7

Yes I do I checked too :D

Answer 8

excellent :)