Suppose the temperature in denver, colorado was 55 degrees fahrenheit when a 5 degrees fahrenheit arctic cold front moved over the state. using k=0.012 , how long would it take a puddle of water to freeze? (recall that water freezes at 32 degrees fahrenheit.)

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