In circle a shown below, marc bc is 71° and marc ef is 78°: points b, c, e, f lie on circle
a. lines be and cf pass through point d creating angle edf. measure of arc bc is 71 degrees and measure of arc ef is 78 degrees. what is m∠fde?

We are given with
measure of arc BC = 71 degrees
measure of arc EF = 78 degrees
We are asked for the
measure of angle FDE
We can solve this using the theorems on circles.
The subtended angle of two intersecting chords is equal to half the sum of the subtended arcs. So,
(71 + 78) / 2 = 74.5°
angle FDE = 74.5°

Hello there.
In circle a shown below, marc bc is 71° and marc ef is 78°: points b, c, e, f lie on circle 
a. lines be and cf pass through point d creating angle edf. measure of arc bc is 71 degrees and measure of arc ef is 78 degrees.what is m∠fde?

74.5°

10,000 hope i ! : )