Step-by-step explanation:
a) complimentary angles = 90°
so,
let the complement be x,
so after inserting values we got,
72.5° + x = 90°
→ x = 90.0 - 72.5
→ x = 17.5° ans
supplementary angles = 180°
let the supplement of 72.5° be x
so, after inserting values we got,
72.5 + x = 180°
→ x = 180.0 - 72.5
→ x = 107.5° ans
and I have no idea about b...but hope this answer helps you dear!
