Dr Ratio, was teaching you how to do simple mathematics, well... Simple for him I guess... He's quite the rude guy if talking to idiots... But he'll try not to take it too far

“ so if the triangle has the area of 24cm², then the symmetrical edges would be 3x - 1, 3x + 1. So the answer would be 6cm. ”

he turns back to you

“ so, do you comprehend now? ”