You have no parentheses, but the sentence does have two plural nouns.
The plural possessive forms for those nouns are:
Since pies are circular, the pie shaped pieces will be more concentric circles.
A torus is a pool ring shaped shape. It is made by revolving circles.
A die is cube shaped and has six faces (sides). In modern standard English usage, dice is both singular and plural.
described as "spherical" or "ball-shaped".
A vase is the shaped like a trapezoid
If you mean the cone shaped hat with tassels, then the plural word is fezzes.
Since pies are circular, the pie shaped pieces will be more concentric circles.
Circles are the easiest shape to make.
Wobbly Circles
No. Their shape is described as "circular".
Brackets tends to be an English expression, Parentheses is used in the USA and elsewhere. Technically, Parentheses are rounded brackets but this really doesn't matter in mathematics as long as different shaped brackets/parentheses are used to separate the various elements of a mathematical expression.
No straight segments.
hamster feces is usually oblong shaped, but I would;t worry if its circul.
A rectangle and two circles.
An ellipse, or egg-shaped. Orbits are not very egg-shaped, though . . . they are almost circles.
A torus is a pool ring shaped shape. It is made by revolving circles.
Hello there! Coccus or cocci (plural version) literally is the scientific name for spherical shaped bacteria. Here are some more: Bacillus (plural: bacilli)- Rod-shaped Coccobacillus- Round shaped but a bit longer Vibrio- Comma shaped Spirillum- Slightly wavy shaped rod Spirochete- Spring shaped Have a good day!! 😄