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Mathematics 7 Online
OpenStudy (anonymous):

Point H is the incenter of triangle ABC. Find DH. a. 14 b. 7 c. 18 d. 21

OpenStudy (anonymous):

OpenStudy (jdoe0001):

notice the triangle where DH is at |dw:1404336617232:dw| 30-60-90 rule --> http://upload.wikimedia.org/wikipedia/commons/1/15/Triangle_30-60-90_rotated.png

OpenStudy (anonymous):

oh ok!

OpenStudy (jdoe0001):

|dw:1404336853514:dw|

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