I haven't been able to find anything on the internet that will help me, can someone explain how to the first couple questions?

i need more details sorry

step-by-step explanation:

there are infinitely many solutions.

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

answer: none of these answers are correct only the second half is

step-by-step explanation: