Question

Identify the the length of Rectangle 2 if both the rectangles have same area.

• A. 8.16 cm
• B. 8.24 cm
• C. 8.33 cm
• D. 8.19 cm

Answer 1

The correct option is A 8.16 cm

We know,
Area of rectangle = Length $\times$ Width

Let us find out the area of Rectangle 1.
Length = 7.2 cm
Width = 3.4 cm
∴ Area of Rectangle 1 = (7.2 $\times$ 3.4) sq cm


Calculating 7.2 $\times$ 3.4 by standard algorithm, we get:


Area of Rectangle 1 = 24.48 sq cm

It is given that,
Area of Rectangle 1 = Area of Rectangle 2

So, in Rectangle 2,
Area = 24.48 sq cm
Width = 3 cm


The length of the rectangle can be observed as:


∴ Length of the rectangle
= (24.48 $÷$ 3) cm

Let us divide the numbers using standard algorithm.


So, length of Rectangle 2 is 8.16 cm.