Use the figure to find the measures of the numbered angles. Can someone help?

What is the frequency of the sinusoidal graph?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm