Question

a Square of side x cm is removed from each corner of a rectangle measuring a cm by b cm. the formula for area A of the new figure is​

Answer 1

The required formula for area A of the new figure is  $A=ab-4x^2$.

Step-by-step explanation:

Consider the provided information.

A Square of side x cm is removed from each corner of a rectangle measuring a cm by b cm.

The area of rectangle before removing the corner is: $a\times b$

The area of square having side x cm is: $x^2$

As we know  rectangle has 4 corner and if Square of side x cm is removed from each corner of a rectangle the area will be:

$A=ab-4x^2$

Where A is the area of new figure.

Hence, the required formula for area A of the new figure is  $A=ab-4x^2$.

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The perimeter of a square and a rectangle each is 160m. The area of rectangle is 100m² less than that of the area of square . find the length of the rectangle​.