Question

The area of the four walls of a room is 80 cm² and its height is 4m. Then find perimeter of the floor of the room . ​

Answer 1

Answer:

55 is the answe

Step-by-step explanation:

Answer 2

Step-by-step explanation:

$\rm{Let \: the \: dimensions \: \: of \: the \: room \: are}$

$\sf \red{Length =l m}$

$\sf \pink{breadth =b m}$

$\sf \orange{Height = h=4m}$

$\sf \blue{perimeter = 2(l+b)}$

$\rm \green{area \: of \: the \: four \: walls =80 {m}^{2}}$

$\rm{2(l+b) \times h=80}$

$\rm{2(l+b)= \frac{80}{h}}$

$\tt \red{perimeter = \frac{80}{4}}$

$\bf{ \huge \boxed{ \pink{ \tt{20m \: }}}}$