The triangles can be proven using the SAS postulate. The congruency statement is CAM is congruent to IAM (sorry I don’t know how to type the congruent sign).
Hello :
sum of complementary angles is : 90°
(4x)°+( 5x - 18)° = 90°
(9x)° = 108°
x° = 12°
the angles are : 48° and : 42° ( subsct x= 12° in (4x)° , ( 5x - 18)° )
Before 7:15 is the answer.
6:30 + 21 minutes + 21 minutes puts the time back at 7:12.
