We count 16 angles from just right angles, 12 other acute/obtuse angles (which are particularly tricky), and 11 straight angles. This totals to 39 angles.
(If I'm wrong in terms of missing some angles, please correct me)
Plug n the h and j so you get 6-(2-1). Due to PEMDAS you do the parenthesis first then subtract so it become 6-1=5. ( You could use distributive property)
