Good morning everyone! Can someone please tell me if the answer I got for this question is correct. I'm not sure and I wanna make sure it's right. If it's not then please give me the correct answer.

Please use the following image in order to answer the question correctly.

Find the measure of the red arc or angle.

What is the degree measurement of PS?(The symbol is in the image below)

Please show all the work on how you got your answer.(If you don't have an explanation then don't worry about it, just show your work on how you got the answer)