Question

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.

Answer 1

Step-by-step explanation:

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