Answer:
[tex] {40 \: cm}^{2} [/tex]
Step-by-step explanation:
⇒ "1.25" was replaced by "(125/100)".
⇒
[tex] \frac{5}{4} [/tex]
⇒
[tex](50 \: c \: . \: \frac{5}{4}) \: . \: m[/tex]
⇒ Divide "m" by
[tex] \frac{5}{4} [/tex]
⇒
[tex](50 \: c \: . \: \frac{4m}{5} \: . \: m[/tex]
⇒
[tex] {m}^{1} \: multiplied \: by \: {m}^{1} = {m}^{1 + 1} = {m}^{2} [/tex]
⇒ Final Result :
[tex] {40 \: cm}^{2} [/tex]
