We have the following:
1. Similar By SSS similarity
4/2= 2
7.3.5 = 2
6/3 = 2
2. Similar by AA similarity, same angles, 90°, 70° and 50°
3. Similar by SAS similarity
, same angles and related sides.::
4/2 = 2
6/3 = 2
4. Similar by SAS similarity, same angles and related sides:
12/6 = 2
8/4 = 2