Idon’t know what to do. i need to solve for the measure of angle a

Ok so the 3 angles are 50, x+72, and x+82.
We can find x first;
The angle sum of a triangle is 180 degrees,
So 50 + (x+72) + (x+82) = 180
Simplify the left side to get
2x + 204 = 180
2x = - 24
x = -12.
Angle A is x + 72, so A = -12 + 72
= 60 degrees

So A is 60°
Hope this helped.

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.