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Good day students in this clip we are going to be going over two examples, one involves the calculation of the length of an arc and then the second involves the area of a sector before we get started with the computations lets go over the formulas real quick so lets write this down formulas so the first formula is for the arc length arc length so the formula for the arc length is s , s is the length of the arc equals theta times the radius ok and then the formula for the area of a sector that is given by A equals theta over two r squared alright so those are your two formulas alright so geometrically what do these formulas mean? so lets go ahead and connect these formulas with the this diagram that I have right here alright so I have a circle and then I have a section cut out if you think of it it could be like a slice of pizza. or something like that lol!!!
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