Question

How do you find the perimeter of a 3/4 circle?

Answer 1

Here's what I get..

Explanation:

For the perimeter of a `3/4`th circle, we will add three quarters the perimeter of the full circle with twice the length of the radii.

Perimeter `= (3/4 xx 2pir) + (2 xx r)`

[This is one such example]http://www.brsata.com/postpic/2010/04/perimeter-of-a-three-quarter-circle_109927.png

The perimeter of this "circle" would be :
#(3/4 xx2 xx pi xx 18) + (2 xx 18) = 27pi + 36 ~~ 120.78 m#