6² x k² = 12² x 4² , maka k =

6² x k² = 12² x 4² , maka k =

k^2 = 12^2 x 4^2 / 6^2

k^2 = 144 x 16/ 36

k^2 = 64

k = 8

${6}^{2} times {k}^{2} = {12}^{2} times {4}^{2} \ 36 times {k}^{2} = 144 times 16 \ 36 times {k}^{2} = 2304 \ {k}^{2} = frac{2304}{36} \ {k}^{2} = 64 \ k = 8$