Gina is painting the rectangular tool chest shown in the diagram below.
W: 24 in
H: 12 in
L: 10
If Gina paints only the outside of the tool chest, what is the total
surface area, in square inches (in.), she will paint?

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.