16.03.2015, 16:05
a = not possible, as if equate the upper triangle the equation will be "H^2 = 2a^2+144-24a" , with this data if we try to equate the triangle at the side of that square, then total the equation will be "324-2a^2+24a = 324a^2+a^4-36a^3" which not form a quadratic equation to find the value of 'a'. Hence, the sum is not proper or there is lack of given data.