Answer:
52 units
Explanation:
[] First, we will assume that each square in the grid is equal to one unit.
-> You can count each square in the shape which leads to 52, but I have provided the mathematical way below
[] Since this is a rectangular prism we know we will need to find the area of 6 rectangles for the total surface area.
[] Using the numbers they gave us, and thinking of the layout of a rectangular prism, we can find the side lengths of each rectangle.
-> See attached for my work on this step, it is shown in red
[] We can then do the multiplication for the area of each rectangle, and add them together.
-> For a quadrilateral, L * W = A
- L is length
- W is width
- A is area
-> See attached for my work on this step, it is shown in blue
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather