Answer:
What is asked?
- The total number of cans that must be bought to paint the curved face with one coat.
What are given?
- 15.5 meters height of a cylindrical
- 4.2 meters diameter
- 1 can of paint
- 10 sq. meters it covers
What operation to be used?
- Multiplication and Division
What is the number sentence?
2πhr = πdh = 15.5×4.2×π =n/10=n
What is the complete answer?
2πhr = πdh = 15.5×4.2×π =204.414m^2
1 can = 10m^2
204.414m^2 = 204.414/10 = 20.44
20 cans must be bought to paint the curved face with one coat.
