3 years ago

What is the measure of Angle DEF?

Mathematics

1 answer:

jarptica [38.1K]3 years ago

3 0

Answer:

Step-by-step explanation:

Angles outside a circle are half the difference of the measures of the intercepted arcs.

78 - 12 = 66

66/2 = 33

The angle is 33 degrees

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