enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Surface-area-to-volume ratio - Wikipedia

   en.wikipedia.org/wiki/Surface-area-to-volume_ratio

   Graphs of surface area, A against volume, V of the Platonic solids and a sphere, showing that the surface area decreases for rounder shapes, and the surface-area-to-volume ratio decreases with increasing volume. Their intercepts with the dashed lines show that when the volume increases 8 (2³) times, the surface area increases 4 (2²) times.

3. Similarity (geometry) - Wikipedia

   en.wikipedia.org/wiki/Similarity_(geometry)

   The ratio between the areas of similar figures is equal to the square of the ratio of corresponding lengths of those figures (for example, when the side of a square or the radius of a circle is multiplied by three, its area is multiplied by nine — i.e. by three squared). The altitudes of similar triangles are in the same ratio as ...

4. Golden ratio - Wikipedia

   en.wikipedia.org/wiki/Golden_ratio

   All side lengths are equal, but the ratio of the length of sides to the short diagonal in the thin rhombus equals ⁠: ⁠, as does the ratio of the sides of to the long diagonal of the thick rhombus. As with the kite and dart tiling, the areas of the two rhombi are in the golden ratio to each other.

5. Annulus (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Annulus_(mathematics)

   An annulus Illustration of Mamikon's visual calculus method showing that the areas of two annuli with the same chord length are the same regardless of inner and outer radii. [ 1 ] In mathematics , an annulus ( pl. : annuli or annuluses ) is the region between two concentric circles.

6. Compactness measure - Wikipedia

   en.wikipedia.org/wiki/Compactness_measure

   Alternatively, the shape's area could be compared to that of its bounding circle, [1] [2] its convex hull, [1] [3] or its minimum bounding box. [ 3 ] Similarly, a comparison can be made between the perimeter of the shape and that of its convex hull, [ 3 ] its bounding circle, [ 1 ] or a circle having the same area.

7. Incircle and excircles - Wikipedia

   en.wikipedia.org/wiki/Incircle_and_excircles

   The ratio of the area of the incircle to the area of the triangle is less than or equal to /, with equality holding only for equilateral triangles. [ 19 ] Suppose A B C {\displaystyle \triangle ABC} has an incircle with radius r {\displaystyle r} and center I {\displaystyle I} .