A rectangle has a width of 12. 5 m and a length of 105 m. What is the effect on the perimeter when the dimensions are multiplied by 2? The perimeter is increased by a factor of 2. The perimeter is increased by a factor of 21. The perimeter is increased by a factor of 25. The perimeter is increased by a factor of 92.

It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In rectangle opposite sides are parallel and equal and each angle is 90 degrees. And its diagonals are also equal and intersect at mid-point.

Given

A rectangle has a width of 12.5 m and a length of 105 m.

We know the perimeter of the rectangle is given by

Perimeter = 2 (Lenght + Width)

Let x be the length and y be the width. Then

Perimeter = 2 (x + y)

If the dimensions are multiplied by 2. Then the effect on the perimeter will be

Perimeter = 2 (2x + 2y)

Perimeter = 2 [2 (x + y)]

The perimeter is increased by a factor of 2.

Thus, option A is correct.

More about the rectangle link is given below.

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