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lozanna [386]
3 years ago
13

I'm not sure how to set this up

Mathematics
1 answer:
anygoal [31]3 years ago
6 0
Arc BYA is half the circle and so it is 180 degrees.
<span>When a tangent line (AC) intersects with a chord (AB), it forms an angle (∠BAC) equal to one half of the intercepted arc, so angle BAC = 90 degrees.
Arc YA = 180 -52 = 128 degrees
<span>Angle YAC = 64 degrees.

</span></span>
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