Radial stripes in sketch

Question

What is the best way to create these radial stripes (background) in sketch?

Answer 1

I'd suggest the following:

1. Draw a triangle.

2. Select "Layer > Paths > Rotate Copies". Choose however many copies you want in the circle -- 24, for example.

3. Drag the center point to the tip of the original triangle.

(And if you want these triangles confined to a rounded rectangle, just mask it.)