The mistake is there is no parenthesis around 4x+12
X = 20 degrees
Y = 30
This is acute triangle so all the sides and angles are the same. Subtract 16 from 46 and you receive 30 for y. For the corresponding angle, subtract 80 from 180. Then add 60 to that and subtract that from 180 for x.
To solve for area of a triangle u multiply base times height times 1/2
