Help me Plzzz.If you know the answer.
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Answer:
[tex] \frac{1}{2} \times 2 \times 4 = \: \: \: \: \: \: 4 {m}^{2} \\ 8 \times 2 \: \: \: \: \: \: \: \: \: \: \: \: = + 16 {m}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 20 {m}^{2} [/tex]