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Question 1

determine the measure of FA

Question 1 determine the measure of FA-example-1
Question 1 determine the measure of FA-example-1
Question 1 determine the measure of FA-example-2

1 Answer

1 vote

Answer:

arc FA = 150°

Explanation:

the central angle of a circle is equal to the measure of the arc that subtends it.

given BF is the diameter of the circle , then

∠ FCA + ∠ ACB = 180°

∠ FCA + 30° = 180° ( subtract 30° from both sides )

∠ FCA = 150°

then

arc FA = ∠ FCA = 150°

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