Answer:
arc EFC = 237°
Step-by-step explanation:
arc DEF = 140°
arc EF = 140° - 83° = 57°
arc DC = arc FG
arc DC = (360° - 140° - 140°)/2 = 40°
arc EFC = arc CG + arc FG = arc EF = 140° + 40° + 57° = 237°
True I am guessing or maybe false but I think it is true
A cross-section <span>is the intersection of a solid and a plane.
</span>

Simplify this quadratic function given in vertex form into standard form by simplifying the exponents and adding like terms.




(good luck :) and mark me brainliest if you're satisfied with my answer)