Answer:
[tex]7.50\ m^2[/tex]
Step-by-step explanation:
The area of the rectangle can be calculated using formula
[tex]A_{rectangle}=\text{length}\cdot \text{width}.[/tex]
Since the tent has a base measuring 3 metres long and 250 centimetres wide, then the length is 3 m and the width is 2 m 50 cm or 2.50 m.
Thus, the area is
[tex]A_{tent}=3\cdot 2.50=7.50\ m^2.[/tex]