Explanation:
angles in a triangle add up to 180°
90° + 60° + a = 180°
a = 180° - 90° - 60°
a = 30°
so the unknown angle in the triangle is 30°
90/32 = 30/x
90 × x = 30 × 32
90x = 960
90x/90 = 960/90
x = 10.7
60/y = 90/32
90 × y = 60 × 32
90y = 1920
90y/90 = 1920/90
y = 21.3