In isosceles triangle rst shown below, rs = rt,
mand n are midpoints of rs and rt , respectively,
and mn is drawn. if mn = 3.5 and the perimeter
of rst is 25, determine and state the length of
nt.

this is not my account but its rt

Step-by-step explanation:

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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