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What is the measure of angle A if it intercepts two arcs, one with a measure of 87 degrees and the other with a measure of 33 degrees?

 

 Feb 26, 2021
 #1
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Guess.

 Feb 26, 2021
 #3
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You don't have to guess if you know this:

"When a tangent and a secant, two secants, or two tangents intersect outside a circle then the measure of the angle formed is one-half the positive difference of the measures of the intercepted arcs." 

Guest Feb 26, 2021
 #2
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The measure of an exterior angle is equal to half the difference of the measure of intercepted arcs

 

=   1/2  ( 87-33) = ......... o

 Feb 26, 2021

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