A geometry problem by Annie Li

The area $A=3.5 \text{ m} \times 80 \text{ cm} = 3.5 \text{ m} \times 0.8 \text{ m} = \boxed{2.8} \text{ m}^2$

First convert $\text{80 cm}$ to $\text{m}$ ,

$\text{80 cm=0.8 m}$

Then, find the area

$A= 3.5 \times 0.8 = \boxed{2.8~m^2}$

This is not a solution. Thx to whoever fixed my question!