Question

a childs desk is made so that the dimensions are 2/3 the dimensions of a full size adult desk supposed to top of the full-size test measures 54 inches long by 36 inches wide what is the perimeter and area of the top of the child's desk

Answer 1

The perimeter and area of the top of the child's desk are 120 inch and 864 inch² respectively.

Explanation

Dimensions of the top of the adult's desk :  Length = 54 inches and Width = 36 inches.

As the dimensions of the child's desk are $\frac{2}{3}$ of the dimensions of the adult desk, so....

Length of child's desk $= 54*\frac{2}{3} = 36$ inches and

Width of child's desk $=36*\frac{2}{3}=24$ inches.

So, the perimeter of the top of the child's desk $=2(length+width)= 2(36+24)=120$ inches.

and the area of the top of the child's desk $=length*width=36*24=864$ inch²