In third grade geometry us will discuss inbrief about some of the typical solid figures named below:(i) Cube: an interpretation of cube, components of a cube, properties of a cube.

You are watching: How many flat surfaces does a cube have

(ii) Cuboid: definition of cuboid

(iii) Cylinder: definition of cylinder

(iv) Cone: meaning of cone

(v) Sphere: an interpretation of sphere

Definition of a cube:

An object which looks prefer solid box-shapedthat has six identical square faces.

A cube has actually 6 same and plane surfaces. Allthe encounters of a cube space square in shape.


*

Two adjoining airplane – surfaces meet at anedge. There room 12 edge in a cube and all the 12 edges space equal in length.These edges are straight edges.

The meeting allude of 2 edges is referred to as avertex. In a cube there space 8 together vertices.

Parts the a cube:

(i)Face: Face is likewise known as sides. A cube has sixfaces and all the faces of a cube room square in shapes. Each challenge has fourequal sides.

(ii)Edge: when two edges meet each various other a line segmentformed. There are 12 edge in a cube. Every the 12 edges are equal in lengthbecause all faces are squares. This edges space straight edges.

(iii)Vertex: as soon as three edges satisfy each various other a pointformed. There room 8 vertices in a cube.

(iv)Face Diagonals: confront Diagonals the a cube is theline segment the joins the contrary vertices that a face. There room 2 diagonalsin each face so completely there space 12 diagonals in the cube.

(v) SpaceDiagonals: an are diagonals the a cube space the linesegment that joins the opposite vertices the a cube, cutting v itsinterior. There space 4 an are diagonals in a cube.

Properties the a cube:

Volume: The volume the a cube is s3 wherein s is the size of one edge. Surface Area: The surface area the a cube is 6s2, whereby s is the size of one edge.

Definition that cuboid:

The cuboid has 6 rectangular faces. Theopposite rectangular plane surfaces are the same (equal in every respects). Ithas 8 vertices and also 12 edges.

In a cuboid there space 6 rectangular planesurfaces. There are 8 vertices and also 12 edges.


*

A cube is additionally a cuboid having actually all its 6faces equal and also square. Thus, a cube has actually all the six deals with identical, vice versa, acuboid has actually the opposite deals with identical.

Properties of a cuboid:

Formulas because that the over rectangular box:

Volume: The volume that a cuboid is lwh, wherein l is the length, w isthe width and h is the height.

LateralSurface Area: The lateral surface ar area the a cuboidis 2lh + 2wh, where l is the length,w is the width and h is the height.

SurfaceArea: The surface ar area that a cuboid is 2lw + 2lh +2wh, where l is the length, w is the width and also h is the height.

Definition the cylinder:

A cylinder stand on a one planesurface having circular aircraft surfaces ~ above its top and bottom. For this reason a cylinderhas two circular airplane surfaces, one at its base and also another in ~ its top. The hasa curved surface ar in the middle.

It has actually two edges, at which the two planesurfaces fulfill with the curved surface. These edges space curved edges.

See more: What Was The Central Issue Of The 1866 Congressional Elections ?

In a cylinder there room 2 airplane surfacesand 1 curved surface. There room 2 edges and no vertices.