can someone help me with this problem? Thank you!

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
For the Case of rectangle ~
[tex]\qquad \sf \dashrightarrow \:area = length \cdot width[/tex]
[tex]\qquad \sf \dashrightarrow \:a = 15 \cdot12[/tex]
[tex]\qquad \sf \dashrightarrow \:a= 180 \: \: in {}^{} {}^{2} [/tex]