Tolong kaka di jawab nya, nomor 4 doang kok please nya

[tex]l. \:p \: = s\times s \\ \: \: \: \: \: \: \: \: =16 \times 16 = 256 \: {cm}^{2} . \\ \\ l.s = \frac{a \times t}{2} \\ \: \: \: \: \: \: = \frac{24 \times 16}{2} = 192 \: {cm}^{2} \\ \\ \\ l.t = 256 \: {cm}^{2} + 192 \: {cm}^{2} \\ \: \: \: \: \: \: = 448 \: {cm}^{2} [/tex]