Thank you, CPhill!

Thank you so much!

Thank you, guys!

Thanks, CPhill! You can also label the radius of the circle, and find from that!

Ah, I made a mistake. It's a sector, sorry.

Thank you, CPhill! I should have worded that correctly!

Thank you, CPhill! So, the perimeter is 10+10+6.28=26.28 units?

Kind of looks like this!

Thanks, CPhill! But, it was a regular arc in a circle.

Can we use that 36 degrees is 1/10 of 360?