find the total number of feet of wood needed if the trellis is 8 feet tall and 2 feet wide.

no way to know. A trellis is made of wood stripe. How wide are the strips? How many strips? Most trellises have a semi-circular top. Does this one?

To find the total number of feet of wood needed, you need to calculate the perimeter of the trellis and then convert it into feet.

The perimeter of a rectangle, such as the trellis in this case, can be calculated using the formula: P = 2L + 2W, where P is the perimeter, L is the length, and W is the width.

In this case, the height of the trellis is given as 8 feet and the width is given as 2 feet. So, plugging those values into the formula:

P = 2(8) + 2(2) = 16 + 4 = 20 feet

Therefore, the total number of feet of wood needed for the trellis would be 20 feet.