If angle 1 measures 98° and angle 2 measures 72°, then the two angles are supplementary. true or false

  FALSE .

          For two (2) angles to be supplementary, they must add up to 180° ; 
and the two angles given — 98° and 72° — add up to 170°.

{Note:  98 + 72 = 170 — NOT  "180" ; and as such are NOT supplementary.}.