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Line GJ is tangent to point A at point G.

If AG = 9 and GJ = 12, find AJ.

Line GJ is tangent to point A at point G. If AG = 9 and GJ = 12, find AJ.-example-1
User Mxhiu
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2 Answers

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as you can see, if you draw a segment from a to j, you'll get the right triangle JAG, with right angle in A.

AJ would be the hypothenuse.

AJ = √AG²+GJ² = √9²+12² = √81+144 = √225 = 15 units.
User Stephen Burke
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3 votes
square root of 9^2+12^2
User Tausif
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