PLEASE HELP

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

A. 58°
B. 126°
C. 63°
D. 117°

PLEASE HELP In the diagram below DE and EF are tangent to O What is the measure of DEFA 58B 126C 63D 117 class=

Respuesta :

Answer:

C. 63°

Step-by-step explanation:

<E =  1/2 (243 - 117)

<E = 1/2 (126)

< E = 63


Answer:

The answer is 63 :D

Step-by-step explanation: