Question

if a rectangle have length of 10 inches and width of 8 inches what is the new area if each corner is cut by x^2

Answer 1

`80 - 4x^2`

Explanation:

Area of a rectangle

A rectangle of width W and length L has an area of:

A = W.L

The given rectangle has a length of L=10 inches and a width of W=8 inches, thus its area is:

A = 8*10 = 80

`A = 80\ in^2`

If each corner is cut by a square of x*x, then the total area will be:

`A' = 80 - 4x^2`

The new area is
`\mathbf{80 - 4x^2}` square inches