3 years ago

AD is tangent to circle B at point C. What is the measure of angle BCA.

Mathematics

1 answer:

sdas [7]3 years ago

4 0

Answer:

90°

Step-by-step explanation:

Actually the question should be AC is tangent to circle B at point C. What is the measure of angle BCA.

AC is tangent and BC is radius.

Radius is perpendicular to the tangent.

Therefore,

measure of angle BCA = 90°

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