In geometry, a cube is a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex. The cube is the only regular hexahedron and is one of the five Platonic solids. It has 6 faces, 12 edges, and 8 vertices. How many edge are there...
A cube has 12 edges, 24 angles, eight vertices and six faces. A cube is a regular solid made up of six equal squares. Additionally, all angles within the cube are right angles and all sides are the same length. The surface area of a cube is determined by finding the area of one sq...
How many unordered pairs of edges of a given cube determine a plane?( ) A.12 B.28 C.36 D.42 E.66相关知识点: 试题来源: 解析 D 反馈 收藏
好单整严按从How many unordered pairs of edges of a given cube determine a plane?( ) 好单整严按
(Quick Solution)-|||-As in solution 1,we see that for an arbitrary edge of the cube,only 7 of the other edges can be chosen to form a plane.-|||-For each of the 12 edges,this gives(7)(12)=84 total possible pairings.However each pair has been counted twice (e.g edge A with...
Short bones: Short bones consist mainly of spongy bone with a protective covering of compact bone. Short bones are neither long nor thick, but rather cubelike. Your kneecaps (patellae), wrists (carpals) and some of the other bones in your feet and ankles (tarsals) are short bones. Short...
aWe are coloring the edges of a cube one-by-one. At the beginning none of the edges is colored, and in every step we may color only an edge that is not in contact with a colored edge. How many edges can you color this way the most? 我们上色立方体的边缘逐个。 在开始边缘都没有被...
All edges of a cube are expanding at a rate of 8 centimeters per second.(a)How fast is the surface are a changing when each edge is 2 centimeters?cm2/sec(b)How fast is the surface are a changing when each edge is 15 centimeters?cm2/sec 相关知识点: 试题来源: 解析 Let edge:...
a给我们树立一个好榜样 正在翻译,请等待...[translate] a敬业的 Professional[translate] aserbatolo serbatolo[translate] a去野餐 Goes to the picnic[translate] aat least how many edges of the cube should be painted into black 应该绘立方体的至少多少个边缘入黑色[translate]...
A cube is three-dimensional. It has 12 edges that are joined together by eight vertices, which are at the corners of the cube. Three sides meet at every vertex. A cube is a hexahedron, meaning it has six faces. It’s also a regular hexahedron, which means all six sides are equal is...