Question 9 and 10

Thanks so much

9 is 62
FEH is 56 so u need to divide by 2
you get 28
you are given a right triangle
a right triangle is 90 degrees
a full triangle is 180 degrees
90 + 28 = 118
180-118= 62

10 is square root 2 because both triangles are the same in size making the line the same

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.