Question

given the quadrilateral, find the perimeter. let the units be in feet.

Explanation:

Step1: Determine side - lengths by counting grid units

By observing the grid, we can see that the horizontal side lengths: The length of $ST$ and $VU$ can be found by counting the grid units. Each grid unit represents 25 feet. The length of $ST$ and $VU$ is 100 feet (4 grid units of 25 feet each). The vertical side - lengths: The length of $SV$ and $TU$ is 150 feet (6 grid units of 25 feet each).

Step2: Calculate the perimeter of the quadrilateral

The perimeter $P$ of a quadrilateral is the sum of the lengths of its four sides. So $P=2\times100 + 2\times150$.
$P = 200+300$.

Answer:

500 feet