Ashelton27
Ashelton27 Ashelton27
  • 02-03-2017
  • Mathematics
contestada

if the perimeter of the rectangle is 32cm and the area is 55cm2, what are the dimensions of the rectangle?

Respuesta :

wolf1728
wolf1728 wolf1728
  • 03-03-2017
2L + 2W = 32
L * W = 55

L = 55/W then substitute into first equation
2 * 55/W + 2W = 32 Multiplying both sides by "W"
110 + 2W^2 = 32 W
2W^2 -32W +110 = 0
L = 11 or L = 5
Also W = 11 or W = 5


Answer Link

Otras preguntas

Abc is a triangle, ac=19cm bc=17cm and angle bac=60 degrees. calculate the size of angle abc? answer
where do most pollutants enter the body through?
Abc is a triangle, ac=19cm bc=17cm and angle bac=60 degrees. calculate the size of angle abc? answer
How do you say 'my name is megan' in French
Need to find common denominators for 58/2.9 and 58/5
waht will happen if one of the system fails to carry out its function properly?
What's the answer please
What Does 'Bury the Hatchet' Mean?
can someone explain to me how to use "squared"? I do 2+2 and its four. but when I do 3+3 and I get 6, my brother tells me that's not squared. can you help me ou
what is an intentional fallacy?