What is the area of the following rectangular mat:

(Image of a rectangular mat with l= 15 metres, w=1 metre)

​ (a)  

What is the area of a square with a side length of 4 metres? (a)  

We measure the area of a shape in (a)   units.

How much grass do you need to cover a rectangular playground that is 18 metres long and 6 metres wide? (a)  

If a rectangular swimming pool is 25 metres long and 7 metres wide, its area is _____?​ (a)  

What is the area of a square with a side length of 7 centimetres? (a)  

If a rectangular room has a length of 21 metres and a width of 6 metres, how much carpet do you need to cover the floor?​ (a)  

What area do you need to paint if you are painting a rectangular wall that is 35 metres long and 9 metres wide?​ (a)