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☆☆☆☆☆A dodecahedron has 12 regular pentagonal faces, 20 vertices, and 30 edges. Three faces meet at each vertex.
don't you mean 2:1 instead of 21. The answer is 4:1
4:1
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Volume of a sphere of radius r: V = 4pi/3 x r3 If the ratio of the radii of two spheres is 23,
then the ratio of their volumes will be 233 = 1,2167
The equation for the surface area of a sphere is 4∏R2
Insert values for r
4x(pi)x32
4x(pi)x9
4x9=36pi
36xpi = 133.076 units2
Discs.
Surface area of a sphere = 4*pi*radius2
Surface area = 4*pi*112 = 1520.530844 square units.
Total surface area is about 282.74 units2 (90 pi)
(Using pi = 3.14 gives the estimate 282.6)
SA = (pi 2r) x h + 2 (pi r2) = 72 pi + 2 (9 pi) = 90 pi
7238.23 (rounded)
275 units squared
pyramid
Prism!
Volume in cubic units = 4/3*pi*153
A sphere is a solid bounded by the set of all points at a given distance from a given point.
V = 4/3(Pi*r3): A sphere with a radius of 16 units has a volume of ≅17,157.28 cubic units.
it has different fatty acids
WHJA was created in 1985.
he refused to reform his goverment
113.097336 units cubed.
yes
