For this case we must find the area of a flower bed with a triangle shape.
The area of a triangle is given by:
[tex]A = \frac {b * h} {2}[/tex]
Where:
b: It's the base
h: It's the height
Substituting the given values:
[tex]A = \frac {15 * 9} {2}\\A = 67.5\ ft ^ 2[/tex]
Answer:
[tex]A = 67.5\ ft ^ 2[/tex]
