In mathematics, an annulus (pl.: annuli or annuluses) is the region between two concentric circles. Informally, it is shaped like a ring or a hardware washer. The word "annulus" is borrowed from the …

An annulus is a flat shape like a ring. Its edges are two circles that have the same center. Something shaped like an annulus is said to be annular. Because it is a circle with a circular hole, you can …

An annulus (meaning little ring in Latin) is a ring-shaped figure between two concentric circles. Below are two examples. Think of an annulus as a circle with a concentric hole in it. An annulus is …

An annulus is a two-dimensional flat figure shaped in a circular form which is constructed by two concentric circles. The region or the area formed in between these two concentric circles is called the …

Aug 1, 2025 · Calculate the unknown areas, circumferences and radii of an annulus with any 2 known variables. Online calculators and formulas for an annulus and other geometry problems.

The annulus, also known as a ring, is a fascinating geometric shape that appears frequently in mathematics, physics, and engineering. It represents the region enclosed between two concentric …

On Saturday, the moon will pass in front of the sun, obscuring much of it but leaving behind a brilliant ring, or annulus, of unfiltered sunlight in parts of the western United States.

An annulus is a flat ring shaped object, much like the throw-ring shown on the right. One way to think of it is a circular disk with a circular hole in it. The outer and inner circles that define the ring are …

Nov 14, 2025 · The term 'annulus' comes from the Latin word annuli, meaning 'little ring.' An annulus is a flat, plane figure formed between two concentric circles, creating a ring-like shape.

An annulus is a shape made out of two circles. An annulus is a plane figure formed between two concentric circles (the circles sharing a common center). The shape of the annulus is like a ring. …