Question

Question was provided via image upload.

Explanation:

Step1: Recall triangle - area formula

The area formula for a triangle is $A=\frac{1}{2}bh$, where $b$ is the base and $h$ is the height.

Step2: Identify base and height

For a right - triangle, two perpendicular sides can be considered as the base and height. Here, if we take $b = 12$ ft and $h = 5$ ft.

Step3: Calculate the area

$A=\frac{1}{2}\times12\times5= 30$ square feet.

Answer:

30 square feet