How many faces does a cube have?
Answer6
A cube has 6 square faces, 12 edges and 8 corners.
Science · Facts & stats
3D facts & stats
7 fact-checked facts about three dimensions and 3D shapes, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Humans judge depth mainly because of what?
AnswerTwo eyes seeing slightly different images
Binocular vision lets the brain compare two slightly different views to judge depth.
Going deeper
What is the volume of a cube with 3 cm sides?
Answer27 cubic centimeters
A cube's volume is side cubed: 3 x 3 x 3 = 27 cubic centimeters.
How many edges does a cube have?
Answer12
A cube has 12 edges: four on the top, four on the bottom and four vertical ones.
Stereolithography (SLA) 3D printing hardens what material?
AnswerLiquid resin, using ultraviolet light
SLA printers use UV light to cure liquid photopolymer resin layer by layer.
Expert level
How many Platonic solids are there?
Answer5
There are exactly five Platonic solids: tetrahedron, cube, octahedron, dodecahedron and icosahedron.
What is the formula for the surface area of a sphere?
Answer4πr²
A sphere's surface area is 4πr²; (4/3)πr³ is its volume.
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