Answer both questions on the assignment linked here: https://files.acrobat.com/a/preview/1d743d74-4a45-4b99-b1e9-250be9a81529 . Be sure to show work and your thought process!
Use those two problems as well as what you know about circumference, C=2πr and Area of a circle, A=πr^2 in order to develop these equations on your own. You must include a formula to find the length of an arc as well as area of sector. You can define the variables and write the equation how you best see fit. You must include an explanation for where your formulas came from and why they work. Good luck!