[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]
Let's calculate ~
Area of Triangle
[tex]\qquad \sf \dashrightarrow \: \frac{1}{2} \times 7 \times 6[/tex]
[tex]\qquad \sf \dashrightarrow \: \frac{1}{2} \times 42[/tex]
[tex]\qquad \sf \dashrightarrow \:21 \: ft {}^{2} [/tex]
Area of square
[tex]\qquad \sf \dashrightarrow \:4 \times 4[/tex]
[tex]\qquad \sf \dashrightarrow \:16 \: ft {}^{2} [/tex]
Area of composite figure
[tex]\qquad \sf \dashrightarrow \:16 \: ft {}^{2} + 21 \: ft {}^{2} [/tex]
[tex]\qquad \sf \dashrightarrow \:37 \: ft {}^{2} [/tex]
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