Question

*The side of a square is 5 cm and the area of ​​a rectangle is twice the area of ​​this square. So what is the area of ​​the rectangle?*​

Answer 1

Given,

• Side of Square = 5cm
• Area of Rectangle =2 × Area of Square

To Find

• Area of Rectangle

We know that

$Area\ of\ Square= (Side)²$

$Area\ of\ Square= {5}^{2}$

$Area\ of\ Square= 25cm ^{2}$

It is Given area of a rectangle is twice the area of this square

${Area \: of \: Rectangle= 2× Area \: of \: Square }$

${Area \: of \: Rectangle= 2× 25 }$

${Area \: of \: Rectangle= 50cm ^{2} }$

Hence the area of Rectangle is 50cm²

Answer 2

• Area of Rectangle = 2( Area of Square) → eq(1)
• then ,
• Area of Square = (a)² = (5)² = 25cm²
• $\large \sf \color{lime}{Area \: \: of \: \: Square = 25 {cm}^{2} }$
• Area of Rectangle = 2(25) = 50cm²