PLZZ help asap

What is the approximate total length of iron edging needed to create the square frame and the two diagonals?

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths

In the diagram, the ratios of two pairs of corresponding sides are equal to prove that almn - axyz by the sas similarity theorem, it also needs to be shown that x 6 z un z zz un = 2x zləzz lezy