Correspondence angle

Completely equal to two.

triangle

call out

Congruent triangle

Concept:

1、

three

A triangle with two equal sides is congruent triangles.

2. Two sides and it

street corner

Two equal triangles are congruent triangles (SAS).

3. Two triangles with two angles and equal sides are congruent triangles (ASA).

4. Two triangles with two angles, one of which has equal opposite sides, are called congruent triangles (AAS).

very ......

The content in brackets is to be written in the process of judging. If you memorize it, congruent triangles is super simple. The above content should be roughly the same as in the book. I think my memory is good ... I'll wait for you later.

Equiangular phenomenon

Mainly through triangles.

suit

To prove that this part should be studied carefully, and the senior high school entrance examination accounts for 9~ 12 points!