Respuesta :

Sp1cyRamen
All of a triangles angles add up to 180 degrees so since angle C is 90 degrees both angles A and B are 45 degrees

Answer:

100 (rounded to nearest hundred)

Step-by-step explanation:

Angle B = cos-1 (A/H)

= cos-1 (6/7)

= 31

Angle A = 180 - (90(right angle) + 31)

              = 59