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Mathematics 7 Online
OpenStudy (anonymous):

No perfect square factor of 30!?!? The figure shows a right triangle AEB on a rectangle CBED. What is the length of side AD? 19.23 cm 24.32 cm 30.16 cm 34.64 cm

OpenStudy (anonymous):

OpenStudy (eyust707):

|dw:1324160263942:dw|

OpenStudy (anonymous):

what do we know about 30-60-90 triangle?

OpenStudy (anonymous):

tan 30 = ae/30 ae = 30 tan 30 ed = 30 tan 30 ad = 2 * 30 * tan 30 = 34.64

OpenStudy (anonymous):

|dw:1324160529888:dw|

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