What is the perimeter of the trapezoid with vertices q(8, 8), r(14, 16), s(20, 16), and t(22, 8)? round to the nearest hundredth, if necessary.

Check the picture below.

so... you can pretty much see how long RS and QT are, you can just count the units off the grid.

now, let's find QR's length



and let's also find the length for ST



so, add the lengths of all sides, and that's the perimeter of the trapezoid.