Question

Help me with this Geometry question Please! (Will Fan & Medal)
Question: http://prntscr.com/76eng9

Answer 1

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

Answer 2

The diagram isn't displaying

Answer 3

The diagram isn't displaying

Answer 4

Heres an attachment

Answer 5

Join OD, OF
then use the fact that the radius and tangent are perpendicular

Answer 6

since two angles add up to 180, the other two angles must add up to 180 :

\[DF+94=180\]

solve \(DF\)

Answer 7

So DF would equal 86 Degrees?

Answer 8

Yep!

Answer 9

actually there is an easy way

Answer 10

@rational Question: why can't we use:

Answer 11

was about to say that lol

Answer 12

hehehe. ok

Answer 13

didn't notice 274 initially

Answer 14

So for the Shortcut I would take the Mesure of ODF and Subtract it by 360?

Answer 15

Yes

Answer 16

Aight thanks!