Please help with this homework question below. The answer should be typed to avoid handwriting problems. Any diagram can be hand-sketched. Thank you very much.

Question:

Complete the following questions utilizing the concepts of Trigonometry.

1.Find the length of an arc in a circle of radius10 centimeters subtended by the central angle of 50.Please show me details of your work for better understanding.

2.Graph f(x) = x sin xon [-4, 4] and verbalize how the graph varies from the graphs of f(x) = x.

Then, Graph f(x) = (sin x) / x on the window [5, 5] and describe freely what the graph shows. You can use www.desmos.com/calculator to obtain the graphs.

3. A 23-ft ladder leans against a building so that the angle between the ground and the ladder is 80. How high does the ladder reach up the side of the building? Show the steps of your reasoning.