How do I paint over a graphic object in the form of a slice of pizza?

Phaser 3
1

I have a sector constructed of two lines and an arc, but now I am faced with the problem that I cannot fill this space between them with color, because there are no such shapes. is it possible?
image

2

Might it be possible to apply a mask object to a graphic object?

3

http://labs.phaser.io/edit.html?src=src/game%20objects\graphics\pacman%20arc.js