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OpenStudy (vera_ewing):
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OpenStudy (raden):
look at the yellow part, use the property of a 30-60-90 triangle. take the proportion of sides front of angles 30 and 90, it must be 1 : 2. so, x : 30 = 1 : 2 solve for x
OpenStudy (raden):
yes, that is an equation. x/30 = 1/2
OpenStudy (raden):
correct
OpenStudy (raden):
look at next triangle : |dw:1388938339709:dw|
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