<p>hm yea but how come you use 12 x 13 and not 13 x 13 because i figured when you get teh area of the triangle the 12 is covered , so why isn’t it 13 x 13 + 30?</p>
<p>hm yea but how come you use 12 x 13 and not 13 x 13 because i figured when you get teh area of the triangle the 12 is covered , so why isn’t it 13 x 13 + 30?</p>