PLEASE HELP 20 POINTS!! We have learned that there are five steps to reading a new piece of music. Can you name all five steps?
What is a voice part in choral music?
Why are key signatures important in music?
Can you name the voice types that are common in a choral octavo? What does each mean?
How do sharps or flats work on a scale?

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

step-by-step explanation: