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thejadynhood73
i think it would be 7.5!
the picture doesn't have a lot of info but to the looks of it the parallelogram is split into two equal triangles so if the parallelogram is 15 and you divide that by two since there are two triangles that look like the same it would be 7.5!
Ryanloser
The triangle is half of the parallelogram, so that would be 7.5 cm 2