OpenStudy (anonymous):

MEDAL AND FAN! What is the surface area of the rectangular prism? in2 Rectangular prism with height of three inches, length of twelve inches, and width of ten inches http://static.k12.com/calms_media/media/1576000_1576500/1576259/1/702b3e3ec079b37d9e6408c3398972de35032b83/MS_IMB-1401222-1120106.jpg

OpenStudy (anonymous):

Formula: $$SA = 2(wl+hl+hw)$$ Plug in what we know: $$SA = 2((10)(12) + (3)(12) + (3)(10))$$ Simplify that

OpenStudy (anonymous):

@iGreen. is it 300?