URGENT Find x, y, and the length of TV.

40 & 50 in the right corner are the complementary angles as when placed in a sum (added together) they make 90°

Same length is comparing because it’s saying its the same and not different

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.