Question

A piece of string 28 cm long is bent to form a square. What is the area of a square?

• A. $40{\text{cm}}^2$
• B. $49{\text{cm}}^2$
• C. $14{\text{cm}}^2$
• D. $34{\text{cm}}^2$

Answer 1

The correct option is B $49{\text{cm}}^2$

Given: Perimeter of the square = 28 cm
$4\times \text{side}=28\text{cm}$
Side = $\frac{28}{4}$cm = 7cm
Area of sqaure = Side $\times$ Side
= 7cm $\times$ 7cm
= 49cm${}^2$