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PLEASE HELP!! Find mCFD
180°
276
307
53°

PLEASE HELP!! Find mCFD 180° 276 307 53°-example-1

1 Answer

5 votes

Answer:

307°

Explanation:

CF is a diameter of the circle. so, any arc connecting C and F has an arc angle of 180° (half-circle).

so, we need to add the arc angle FD.

we know the arc angle ED = 79°.

so, what is left to add is the arc angle FE.

the arc angle FE is the same as BC.

and the arc angle BC is the supplementary angle (means together they have 180°) to 132° :

BC = 180 - 132 = 48°

therefore,

the arc angle CFD = 180 + 48 + 79 = 307°

User Zigglzworth
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