Circle f is congruent to circle j, and ∠efd ≅ ∠gjh. m∠dfe = 80°. what is the measure of gh? °

80

step-by-step explanation:

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

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

the one on the bottom left

step-by-step explanation:

all of the other ones have a specific pattern