AB and DE are chords that intersect at point F inside circle C as shown. If the measure of arc EA= 50 degrees and the measure of arc DB= 70 degrees, what is the measure of angle AFE and angle EFB?

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Help please!

Part 1)

Part 2)

Step-by-step explanation:

Part 1) what is the measure of angle AFE

we know that

The measure of the interior angle is the semisum of the arches that comprise it and its opposite.

Note: In this problem the correct measure of arc EA is 40 degrees (see the picture)

so

substitute the given values

Part 2) what is the measure of angle  EFB?

we know that

---> by supplementary angles (form a linear pair)

so

substitute the given value

i think it is c, not positive though

step-by-step explanation:

step-by-step explanation: