Math, asked by Happy9203, 11 months ago

list five object that can be recycled and reused.note their shapes.classify them as 2D or 3D. find out formula to calculate their area and volume

Answers

Answered by amitnrw
23

Answer:

Step-by-step explanation:

five object that can be recycled and reused

their shapes , classify them as 2D or 3D

calculate their area and volume

Aluminum cans  = Cylindrical Shape  - 3D

Surface Area = πRh + 2πR²  = 22πR ( h + R)

Volume = πR²h

Corrugated Cardboard  = Cube , Cuboid  - 3D

Volume of cuboid = abc  ( where a , b & c are sides)

Cube is also cuboid where a = b = c

Surface Area of cuboid = 2 (ab + bc + ca)

Paper  -  Rectangle / Square - 2D

Area = Length * width

in square Length= Width

Plastic Bottles - Cylindrical  - 3D

News Paper - Rectangle  - 2D

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