Question

Find the missing dimension of the following.

(a) Rectangle , l = 12 cm , Area = 60 cm , b =​

Answer 1

Answer:

Step-by-step explanation:

Breadth = Area/Length

= 60/12

= 5cm

Answer 2

Answer :-

• The missing dimension of the rectangle = 5 cm.

Given :-

• The figure is a rectangle.

• Length = 12 cm.

• Area = 60 cm².

To find :-

• The missing dimension (Breadth) of the rectangle.

Step-by-step explanation :-

• In this question, the area and the length of a rectangle has been given to us. We have to find it's breadth. We are going to do so by forming an equation using the given information and then solve it to find out our answer.

Calculations :-

We know that :-

$\underline{\boxed{ \sf Area \: of \: a \: rectangle = Length \times Breadth.}}$

Here,

• Area = 60 cm².
• Length = 12 cm.

Let the breadth be b.

Substituting these values in the given formula,

$\implies \sf{60}= 12 \times b$

• Multiplying 12 by b,

$\sf \implies 60 = 12b$

• Transposing 12 from RHS to LHS, changing it's sign,

$\sf \implies \dfrac{60}{12} = b$

• Dividing 60 by 12,

$\underline{\boxed{\sf \implies 5 = b.}}$

Hence, the breadth of the rectangle = 5 cm.