Question

In ∆ABC, plss answer this question with an appropriate answer!
wrong answers or irrelavant content wil be reported//

Answer 1

Step-by-step explanation:

what is question

in ΔABC what

Answer 2

Answer:

Step-by-step explanation:

We say that triangle ABC is congruent to triangle DEF if

AB = DE

BC = EF

CA = FD

Angle A = Angle D

Angle B = Angle E

Angle C = Angle F

(Of course Angle A is short for angle BAC, etc.)

Very Important Remark about Notation (ORDER IS CRITICAL):

Notice that saying triangle ABC is congruent to triangle DEF is not the same as saying triangle ABC is congruent to triangle FED. For example the first statement means, among other things, that AB = DE and angle A = angle D. The second statement says that AB = FE and angle A = angle F. This is very different!

The notation convention for congruence subtly includes information about which vertices correspond. To write a correct congruence statement, the implied order must be the correct one.

The good feature of this convention is that if you tell me that triangle XYZ is congruent to triangle CBA, I know from the notation convention that XY = CB, angle X = angle C, etc. So once the order is set up properly at the beginning, it is easy to read off all 6 congruences.

Congruence Criteria

It turns out that knowing some of the six congruences of corresponding sides and angles are enough to guarantee congruence of the triangle and the truth of all six congruences.