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Mathematics 21 Online
OpenStudy (anonymous):

What is the length of side AB in the triangle below? http://i884.photobucket.com/albums/ac43/helloitsme12121/graphgeo_zpsb434ec3c.png A. 19.21 B. 9 C. 3.87 D. 4.12

OpenStudy (anonymous):

hint: AB can be your hypotenuse of a right angle triangle (draw it)

Directrix (directrix):

@Jon123123123 Read the coordinates of points A and B from the graph. Then, apply the distance formula.

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