How we can take area amd perimeter of a sphere,cuboid and cube

Dear Student,

Sphere , cuboid and cube does not have any perimeter. Only colsed two dimension figure has perimeter, like circle, sruare, rectangel, triangle etc. and we can calculate the totel surface area of three dimenssional object like sphere, cuboid , cube etc. To calculate total surface area of cuboid by sum up all the six surface area, and for sphere there is a formula (4*pi*r*r) where r is the radious of the sphere.

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