What is the measure of e then the angle of <efb

  angle EFB = 35 degrees

Explanation:

To get angle EFC, we will average the two arc measures given

This means we add them up and divide by 2

angle EFC = (arcEC + arcBD)/2

angle EFC = (164+126)/2

angle EFC = 290/2

angle EFC = 145

Then we can say:

(angle EFB)+(angle EFC) = 180 ... the two angles are supplementary

(angle EFB) + (145) = 180

angle EFB = 180-145

angle EFB = 35

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

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