Question

Which type of surfaces are known as plane surfaces?​

Answer 1

Answer:

1) plane surfaces:

flat mirror are called plane surfaces. the object having plane surfaces are are called plane object.

the surfaces of book, match box, almirah, table etc. are the example of plane surfaces.

2) curved surface :

the surfaces which are not flat , are called curved surfaces. the surfacesurface of a ball , or an orange is curved or is spherical surface.

spherical surfaces are formed by only on surface .

the are some object which have both plane and curved types of surfaces.

Drum and clock are such object having both type of surfaces.

Step-by-step explanation:

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