Shapes for lunch

I like to eat a square.

我喜欢吃正方形。

I like to eat a triangle.

我喜欢吃三角形。

I like to eat an oval.

我喜欢吃椭圆形。

I like to eat a rectangle.

我喜欢吃长方形。

I like to eat a circle.

我喜欢吃一圈。

I like to eat a half-circle.

我喜欢吃半圈。