short definition of.
1) cube
2) cuboid
3)cone
4) sphere
5) hemisphere
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1. cube is a 3D figure which consists of 6 faces. All the 6 faces are squares..
2.cuboid is a 3D figure which has 6 rectangular faces
3.cone is a 3D Figure which has a pointed tip and circular bottom.
4.sphere is a 3D figure which has only circle.
5. when you cut a sphere, it is a hemisphere. that is, half of sphere is hemisphere.
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2.cuboid is a 3D figure which has 6 rectangular faces
3.cone is a 3D Figure which has a pointed tip and circular bottom.
4.sphere is a 3D figure which has only circle.
5. when you cut a sphere, it is a hemisphere. that is, half of sphere is hemisphere.
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Hey frnd here is ur ans.....
CUBE -- > It is the 6 faces solid each of its face is square in shape it has 8 vertex 12 edges six faces 4 diagonals and two surface diagonals.
IMPORTANT FORMULA :
◆ Length of surface diagonal = a√2 unit
◆Length of main diagonal = a√3 unit
◆Total surface area of cube = 6a^2 sq. unit
◆ volume of cube = a^3 cube unit.
CUBOID --> It is the six face solid,each of its face is rectangle in shape, it has 8 vertices, 12 edges,6 faces , 12 surface diagonal and 4 main diagonal.
IMPORTANT FORMULA:
◆Length of surface diagonal of cuboid :
d1 = √a^2+c^2
d2 = √a^2+b^2
d3 = √b^2+c^2
◆Length of main diagonal of cuboid = √a^2+b^2+c^2
◆Total surface area of cuboid = 2(ab+bc+ca)
◆volume of cuboid = a×b×c
CONE --> It is a three dimensional shape which is made up of a circular base and curved surface.
IMPORTANT FORMULA :
◆Area of base of cone = πr^2
◆curved surface area of cone = πrl
◆Total surface area of cone = πr(r+l)
◆Volume of cone = 1/3πr^2h
◆Relation between l, r, h
l^2=r^2+h^2
SPHERE --> It is a three dimensional . which every point on a surface is equidistant from centre.
IMPORTANT FORMULA:
◆Surface area of sphere = 4πr^2
◆Volume of sphere = 4/3πr^3
HEMISPHERE--->
IMPORTANT FORMULA:
◆Curved surface area of hemisphere = 2πr^2
◆Total surface area of hemisphere = 3πr^2
◆Volume of hemisphere = 2/3πr^3
Hope it may help you... ;)
Thankyou ☺☺
SWEETY ⚡⚡
CUBE -- > It is the 6 faces solid each of its face is square in shape it has 8 vertex 12 edges six faces 4 diagonals and two surface diagonals.
IMPORTANT FORMULA :
◆ Length of surface diagonal = a√2 unit
◆Length of main diagonal = a√3 unit
◆Total surface area of cube = 6a^2 sq. unit
◆ volume of cube = a^3 cube unit.
CUBOID --> It is the six face solid,each of its face is rectangle in shape, it has 8 vertices, 12 edges,6 faces , 12 surface diagonal and 4 main diagonal.
IMPORTANT FORMULA:
◆Length of surface diagonal of cuboid :
d1 = √a^2+c^2
d2 = √a^2+b^2
d3 = √b^2+c^2
◆Length of main diagonal of cuboid = √a^2+b^2+c^2
◆Total surface area of cuboid = 2(ab+bc+ca)
◆volume of cuboid = a×b×c
CONE --> It is a three dimensional shape which is made up of a circular base and curved surface.
IMPORTANT FORMULA :
◆Area of base of cone = πr^2
◆curved surface area of cone = πrl
◆Total surface area of cone = πr(r+l)
◆Volume of cone = 1/3πr^2h
◆Relation between l, r, h
l^2=r^2+h^2
SPHERE --> It is a three dimensional . which every point on a surface is equidistant from centre.
IMPORTANT FORMULA:
◆Surface area of sphere = 4πr^2
◆Volume of sphere = 4/3πr^3
HEMISPHERE--->
IMPORTANT FORMULA:
◆Curved surface area of hemisphere = 2πr^2
◆Total surface area of hemisphere = 3πr^2
◆Volume of hemisphere = 2/3πr^3
Hope it may help you... ;)
Thankyou ☺☺
SWEETY ⚡⚡
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