Answer
18 degrees and 72 degrees
Work Step by Step
One angle is 4 times the other so one of the angles is 4x:
Angle A=4x
Angle B=c
Angle C=90
The angles in a triangle are equal to 180 degrees so add all the angles and set them equal to 180:
180=4x+x+90
180=5x+90
90=5x
18=x
B is 18 degrees and since A is 4 times B, you multiply 18 $\times$4=72.So A is 72 degrees