Your long distance telephone provider offers two plans. plan a has a monthly fee of $15 and $0.25 per minute. plan b has a monthly fee of $20 and $0.05 per minute. write and solve an equation to find the number of minutes that you must talk to have the same cost for each of the plans.

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

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