Please help! I need to get this done but have no idea how to do it. On a unit circle, the terminal side of angle Θ intersects the circle at point (x, y). Which of the following expressions would make the statement true?
a) sin Θ = (x, y, the ratio of x to y, the ratio of y to x)
b) tan Θ = (x, y, the ratio of x to y, the ratio of y to x)
c) cos Θ = (x, y, the ratio of x to y, the ratio of y to x)

idk

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