Use the Pythagorean Theorem, a squared + b squared = c squared to find the length of a triangle when a = 9 feet and b = 40 feet. Round your answer to the nearest whole number. A. c = 7 feet
B. c = 40 feet
C. c = 41 feet
D. c = 49 feet

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.