Which of the following circles lie completely within the fourth quadrant? check all that apply.

a.(x - 2)2 + (y + 7)2 =64
b.(x - 5)2 + (y + 5)2 = 9
c.(x - 9)2 + (y + 9)2 = 16
d.(x - 12)2 + (y + 0)2 = 72

12.5 feet

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