Answer:
83°
Step-by-step explanation:
Fund the diagram attached. The sum of the ange in the triangle given is 180°, hence;
2x+1+x+15+x = 180
Collect like terms
2x+x+x+1+15 = 180
4x+16 = 180
4x = 180-16
4x = 164
x= 164/4
x =41
Out of the angles the largest angle is 2X+1
Get the largest angle;
2x+1 = 2(41)+1
=82 +1
= 83°
Hence the measure of the largest angle is 83°
