Jamie is correct
Hope this helps!
May I please have brainliest? :D
Answer:
8.60
Step-by-step explanation:
A^2+B^2=C^2
5*5=25 7*7=49 49+25= 74
√ 74= 8.602...
AB=2r
BC=7
AC=AB+BC
-5=2r+7
-12=2r
-6=r
AB=-12