If one of you answers this question right and in a vary detailed way i will mark you as brainiest +i will . how can you better understand a map and how can you memorize the states, countries in africa, europe, asia, north america. south america and other stuff and where they are located? answer in detail somebody answer this question,

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh