Question

the lenght and breadth of a rectangular sheet of paper is 30cm and 20cm respectively. A square sheet of side equal to one-fourth of the breadth of the rectangular sheet is removed from each corner of the sheet . Find the area of the remaining portion of the sheet​

Answer 1

volume of cuboid form=(5o-2×5)×(30-2×5)×5

=40×20×5

=4000cm^3

let the age of the cube x cm

. the volume of the cube is x^3

4x^3=4000

x^3=1000

x=10cm

the age of the cube whose volume is 10 centimetre