Question

What is the length of the
rectangle whose breadth is 3cm and Perimeter is 24cm?​

Answer 1

Answer:

The length of the rectangle = 9 cm

Step-by-step explanation:

Perimeter of a rectangle = 24 cm

2 ( l + b ) = 24 cm

2 ( l + 3 ) = 24

2l + 6 = 24

2l = 24-6

2l = 18

l = 9

Answer 2

To find : length of rectangle .

Given : breadth of rectangle is  $3$ cm and perimeter is $24$ cm .

Solution :  

• As per given data we know that breadth of rectangle is  $3$ cm and perimeter is $24$ cm . We are asked to find length of rectangle .
• To find length we use following formula :
• Perimeter of rectangle = $2( l + b )$

       $24 = 2 ( l + 3 )cm\\ 12 = (l + 3 )cm \\l = (12 - 3)cm \\l =9\ cm$  

Hence, length of rectangle is $9\ cm$ .