The Perimeter of a Rectangle Is $50$ Cm, and Its Area Is

question 119

Multiple Choice

The perimeter of a rectangle is $50$ cm, and its area is $126 \mathrm {~cm} ^ { 2 }$ . Find its dimensions.

• A) \(7 \mathrm {~cm} \times 18 \mathrm {~cm}\)
• B) \(8 \mathrm {~cm} \times 20 \mathrm {~cm}\)
• C) \(8 \mathrm {~cm} \times 19 \mathrm {~cm}\)
• D) \(6 \mathrm {~cm} \times 19 \mathrm {~cm}\)
• E) \(9 \mathrm {~cm} \times 20 \mathrm {~cm}\)

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Definitions:

Average Total Cost

Represents the per-unit total cost of production, calculated by dividing the total cost by the total quantity produced.

Falling

The process or action of moving downwards, typically used in economics to describe a decrease in prices or values.

Short Run

In economics, the short run refers to a period during which at least one of a firm's inputs cannot be changed, limiting its capacity to adjust to demand changes.

Long Run

A period during which all factors of production and costs are variable, allowing full adjustment to any change in market conditions.