Answer:
in qn.6, in qn.7,
12cm 10cm
Step-by-step explanation:
in qn.6
53°+39°+4+7x=180(sum of angle of triangle)
96+7x=180
7x=84
x=12cm
in qn.7
6x-5+5x+75=180
11x+70=180
11x=110
x=10cm
