In third grade geometry us will talk about inbrief around some that the usual solid numbers named below:**(i) Cube: an interpretation of cube, parts of a cube, properties of a cube.You are watching: How many surfaces does a cube have**

**(ii) Cuboid: meaning of cuboid**

**(iii) Cylinder: definition of cylinder**

**(iv) Cone: definition of cone**

**(v) Sphere: an interpretation of sphere**

**Definition that a cube:**

**An thing which looks favor solid box-shapedthat has six the same square faces.**

**A cube has 6 same and aircraft surfaces. Allthe faces of a cube space square in shape.**

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

The meeting point of 2 edges is called avertex. In a cube there space 8 such vertices.

Parts the a cube:

**(i)Face: **Face is additionally known as sides. A cube has sixfaces and also all the deals with of a cube space square in shapes. Each confront has fourequal sides.

**(ii)Edge:** once two edges satisfy each various other a heat segmentformed. There space 12 edges in a cube. Every the 12 edges room equal in lengthbecause all faces are squares. This edges are straight edges.

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

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

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

**Properties of a cube:**

**Volume:**The volume that a cube is s3 whereby s is the length of one edge.

**Surface Area:**The surface area of a cube is 6s2, whereby s is the length of one edge.

Definition the cuboid:

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

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

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

Properties that a cuboid:

Formulas for the over rectangular box:

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

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

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

**Definition of cylinder:**

**A cylinder stand on a one planesurface having circular airplane surfaces top top its top and bottom. Therefore a cylinderhas 2 circular plane surfaces, one at its base and another in ~ its top. It hasa curved surface ar in the middle.**

**It has two edges, in ~ which the 2 planesurfaces fulfill with the bent surface. This edges are curved edges.See more: How To Measure 1/8 Teaspoon ? How To Measure 1/8, 1/4, 1/2 And 1 Teaspoon**

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