Answer:
6) in order 51º; 18º;123º;39º
7) in order 51º; 34º;95º;38º;47º;74º;59
Step-by-step explanation:
a triangle is 180º so 180-72-57=51
x+72=90 x=18
a line is 180º so 180-57=x x=123
a triangle is 180º so 180-123-18=39
diagonals are congruent
180-129=51
180=51-95+x x=34
180=47+95+x x=38
180=59+x+47 x=74
