Question

In the diagram below,DE and EF are tangent to O. What is the measure of DF ?
(picture below)

Answer 1

where is the diagram ?

Answer 2

The angle formed by the intersection of 2 tangents outside the circle equals half the difference of the intercepted arcs.

80 = (1/2)* (260 - x) where x = the measure of minor arc DF.
Your task is to solve the equation for x.

Please post your work and someone will check it.

Answer 3

so its 100?

Answer 4

Correct.

Answer 5

thank you so much

Answer 6

Glad to help.