Question

Find the perimeter of a rectangle having length 5 m and breadth 400 cm .

Answer 1

Length = 5m

Breadth = 400cm = 4m ( Since 100 cm = 1 m )

Perimeter = 2( Length + Breadth)

=> 2(5 + 4)

=> 2 * 9 = 18 m (Answer)

Answer 2

Answer:

Perimeter of a rectangle is $18 \ m$ .

Step-by-step explanation:

To find : perimeter of a rectangle

Given : length and breadth of rectangle are 5 m and 400 cm respectively .

Solution :

• As per given data we know that , length and breadth of rectangle are 5m and 400 cm respectively . We have to find perimeter .

• We first convert breadth into meters : $1m = 100\ cm$

                                                                 $400\ cm = \frac{400}{100} = 4\ m$

• To find perimeter we use following formula -
• Perimeter of rectangle $= 2 ( l + b)$
• Substituting the values we get,
• Perimeter of rectangle = $2 ( 5 + 4 )$

                                                $= 2 ( 9 ) \\= 18\ m$