ChaosMind ChaosMind

08-02-2019
Mathematics

contestada

If the measure of arc EF=47 and the measure of angle ACD=55, determine the measure of angle ECF. I really need help with this, thank you!!

If the measure of arc EF47 and the measure of angle ACD55 determine the measure of angle ECF I really need help with this thank you class=

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sqdancefan sqdancefan

09-02-2019

Answer:

55°

Step-by-step explanation:

∠ECF is a vertical angle with ∠ACD, so has the same measure, 55°.

_____

Whatever arc may exist between points E and F is not shown on your diagram, nor is the center (or radius) of it shown. The measure of arc EF is irrelevant to the question.

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