Question

Which postulate can be used to prove that ADB CDB

Answer 1

Side BD is shared. Look at the marked-up attachment.

So, segment BD is congruent to segment BD by the Reflexive Property.

Why are the triangles congruent? Which postulate? @ameiliam

Answer 2

Do you think its Side - Side - Side (SSS) Side - Angle - Side (SAS) Angle - Side - Angle (ASA) or Angle - Angle - Side (AAS)

Answer 3

SSS

Answer 4

@pabloecortez07

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Answer 5

@The triangles are congruent cause the reflexive property it'd either be SAS or SSS @DIRECTRIX

Answer 6

or Asa

Answer 7

ASA or SSS

Answer 8

Well, we do not have any pairs of congruent angles given. So, nothing with an "A" will be correct.

Answer 9

oooh okay

Answer 10

@ameiliam So, which of these is it: >> ASA or SSS ?

Answer 11

If it doesn't have angles it wouldn't include A?

Answer 12

sss

Answer 13

SSS Postulate. That is what I got, too.

Answer 14

If it doesn't have angles it wouldn't include A? @directrix

Answer 15

@Directrix How come you only tell me? Other people also give answers without explanations. I gave the answer in hopes of someone asking HOW I got my answer, then work backwards to understand the problem. I like doing that.

Answer 16

>>>> If it doesn't have angles it wouldn't include A?

For this problem, no As.
Look at the attached diagram below.
And, take a look at the discussion at this link:
http://www.mathwarehouse.com/geometry/congruent_triangles/

@ameiliam