Maths Tutorials - Arc Length and Perimeter of a Sector

A short tutorial showing how to work out the arc length and perimeter of a sector of a circle.

Thanks for watching!

Video created using Microsoft Powerpoint 2010 and Microsoft Expression Encoder 4 Screen Capture. Used with permission from Microsoft.

[flamingninja]

Thank you so much. My teacher called Mr. Barcleys made it sound like Einsteins work and made the method for me to use like atleast 10 times longer compared to that! When he did the method it took like half the board. I would of failed this term. the guy says he wants me to get good grades shame on him for lying.

[Maximus]

When you worked out the perimeter how did you get the second three

[kamula]

What if u don't know the diameter or the radius? Thanks

[gabriellemicallef]

how do you calculate the area of sector of the circle??

[sunnikattar]

Why are you taking the diameter in the formula the radius is given you just have to square it it’s the formula