Answer:
49º
Step-by-step explanation:
X=11
9x+6= (3x+2)+(70)
Simplify: 6x+6=72
6x+6=72
6x=66
x=11
1 A= pi 21^2
2 C=pi 21
3 A= pi 10.5^2
4 C= 2pi 10.5