Question

@563blackghost

Answer 1

@StudyGurl14

Answer 2

@dumbcow

Answer 3

What do you think about question (a).
What do we know for definite about the 2 triangles?

Answer 4

there equal

Answer 5

when we talk about 2 triangles being exactly alike we call them congruent.
to prove congruency we need to prove they conform to one of the postulates - for example
SAS means that 2 sides and the included angle are equal - if this is true then theyt are congruent.

The question is - Which side and angles of triangles ABD and CBD are equal?

Answer 6

WE are given that side AB = BC and side BD is common to both triangles.

Although the triangles in the drawing might look congruent they may not be. We must not make assumptions.

Answer 7

AD and CD are congruent and AB and CB

Answer 8

(b) tells us that but (a) syas its congruent by SAS - meaning that <ABD = <CBD but we are not given that.

Answer 9

I believe that ABD= CBD by the SAS postulate

Answer 10

So jeremy's answer is incorrect.

Answer 11

im terrible at math sorry

Answer 12

Do you follow what I mean? We cant say that the 2 triangles are congruent by the SAS postulate becuase we don't know that <ABD = <CBD

Answer 13

Yes i see... since it doesnt tell us that they are congruent than we cant say that they are congruent

Answer 14

Correct?

Answer 15

yes

Answer 16

and i write that for my explanation?

Answer 17

yes

Answer 18

Ok done with part a

Answer 19

for (b) we know that AD = CD

and BD is common
and

AB = CB


so they are congruent by which postulate?

Answer 20

SAS congruent postulate?

Answer 21

they are congruent by SAS because the line BD is perpendicular to AC as AD = CD but i think thet are looking for another postulate here
Note that the 3 sides are all congruent.

Answer 22

what are the other ones?

Answer 23

the other what?

Answer 24

the other postulates?

Answer 25

is it ASA congruence postulate?

Answer 26

why are you introducing angles? Look at my post regarding which sides are equal.

Answer 27

look back 4 posts

Answer 28

SSS congruence postulate

Answer 29

Right!!

- 3 equal sides.

Answer 30

and for justifying i write because all 3 sides are equal?

Answer 31

yes

Answer 32

also state the 3 sides in your answer.

Answer 33

- state which sides are equal.

Answer 34

Thanks very much... i have another question could you help

Answer 35

sorry I have to go right now.

Answer 36

ohh alright... ill find another person