2 years ago

PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!

Mathematics

1 answer:

puteri [66]2 years ago

3 0

Answer:

Step-by-step explanation:

the measure of an inscribed angle is half the measure of its intercepted arc, so

arc DE = 2 × ∠ DFE = 2 × 18° = 36°

DF is a diameter of the circle , then

arc DEF = 180° , then

arc EF = 180° - 36° = 144°

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