The area (A) of a triangle is given by the formula
[tex]A=\dfrac{1}{2}bh[/tex]
where b is the length of the base (48 m) and h is the altitude (32 m). Filling in the numbers, we compute the area to be
[tex]A=\dfrac{1}{2}\cdot (48\,m)\cdot (32\,m)=768\,m^2[/tex]
The dog's play space is 768 square meters.