 Practice with Tangents Terms of Use    Contact Person: Donna Roberts  1.
Line segment is tangent to circle O at point A. Which type of triangle is always formed when points, A, B and O are connected?

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 right obtuse isosceles scalene 2.
Given circle O with tangents and . Find x.

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 41 25 5 3.
Given circle O with tangent .
Find x.

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 12 16 18 20 4.
Segments shown are tangents to the circles. Find x.

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 3 4 5 10 5.
Given circle O with tangents and . If AB = 15 and
AO = 17, find OC.

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 5 8 6 9 6.
Given circle O with AB = 8 and
OB = 5. Find the length of tangent .

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 9 10 12 13 7.
Given circle O tangents as shown.
Find x.

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 4 5 7 8 8.
Given circle O with a radius of 9, AB = 24, and BC = 30. Is a tangent to circle O?

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 YES NO 9.
Given circle O with tangents and . If mABC = 74º,
find mA.

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 148º 74º 42º 32º 10.
Given circles O and M sharing external tangents and . The points of tangency are B, C, D, and E. The ratio of AB to BC is 3 to 2. If AE = 35, find DE. Choose:
 7 14 21 24  