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chubhunter [2.5K]
3 years ago
14

Please help!!!! Find the measure of the arc mEFD=

Mathematics
2 answers:
matrenka [14]3 years ago
8 0

Answer:

m(arc EFD) = 270°

Step-by-step explanation:

m(arc EFD) = m(arc EF) + m(arc FD)

Since, m(arc EF) = Angle subtended by the arc EF at the center

                           = 146°

m(arc DE) = 90°

And sum of all the angles subtended by the arcs at the center = 360°

m(arc EF) + m(arc FD) + m(arc DE) = 360°

146° + m(arc FD) + 90° = 360°

m(arc FD) = 360° - 236°

m(arc FD) = 124°

Therefore, m(arc EFD) = m(arc EF) + m(arc FD)

                                     = 146 + 124

                                     = 270°

Nuetrik [128]3 years ago
3 0

Answer:

270°

Step-by-step explanation:

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