asked 36.5k views
4 votes
In the figure below, AC is tangent to circle B. BA is a radius of circle B and A is a point of tangency. If AB is equal to 85 and AC is equal to 110, what is the approximate measure of segment BC?

a.138


b.137
c. 136
d.139

Please help me...
In the figure below, AC is tangent to circle B. BA is a radius of circle B and A is-example-1

1 Answer

4 votes
BC² = AB² + AC²
BC = √(AB² + AC²) = √(85² + 110²) = √(7225 + 12100) = √19325 ≈ 139
Answer: d. 139.
answered
User Wak
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