See attachment for the answer:
Answer:
The three chords are AB , BD and EF
The five radii are AP, BP, EP, FP and CP
You would just do 5.7-8.1, which is -3.6 degrees Celcius. Hope I helped!
-12+-12=-24
-6+-6=-12
-11+-11=-22
-10+-10=-20
-9+-9=-18
-8+-8=-16
-7+-7=-14
-5+-5=-10
-4+-4=-8
-3+-3=-6
-1+-1=-2
1+1=2
2+2=4
3+3=6
4+4=8
5+5=10
6+6=12
