Question

the width of a rectangle is 34 its length if the perimeter is 210 M find the dimension of the rectangle

Answer 1

Width of the rectangle = 34m
Perimeter = 210m
Perimeter = 2(l+b)
210=2(l+34)
210÷2=l+34
105=l+34
Length= 105-34
=71m
Hope it helps:)

Answer 2

Given,

The width of a rectangle is 34 units.

The perimeter of rectangle is 210 meters.

To find out,

The dimensions of the rectangle.

Solution:

$\huge \:perimeter \: of \: rectangle \: = 2(length + breadth)$

Let the length of the rectangle be x.

$210 = 2(x + 34)$

$210 = 2x + 68$

$210 - 68 = 2x$

$142 = 2x$

$x = \frac{142}{2}$

$x = 71$

Therefore the length of the rectangle is 71 units.

proof:

$\huge \: perimeter \: of \: rectangle \: = 2(length + breadth) \\ \\ 210 = 2(71 + 34) \\ \\ 210 = 142 + 68 \\ \\ 210 = 210$