The length of a rectangle is equal to triple the width which system of equations can be used to find the dimensions of the rectangle of the perimeter is 86 cm?

Respuesta :

l = length
w = width

l = 3w

2w + 2l = 86

Equation of find width is 4a = 43

Given that;

Perimeter of rectangle 86 cm

Find:

Dimensions of rectangle

Computation:

Assume;

Width of rectangle = a

Length of rectangle = 3a

So,

Perimeter of rectangle = 2[l + b]

2[3a + a] = 86

4a = 86 / 2

4a = 43

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