Mastering the Basics of Rectangle Perimeter

What is the perimeter of a rectangle that is 5 meters long and 3 meters wide?

• A. 15 meters
• B. 20 meters
• C. 18 meters
• D. 16 meters

Answer: (A)

To find the perimeter of a rectangle, you can use the formula: Perimeter = 2 × (Length + Width). In this case, the length of the rectangle is 5 meters, and the width is 3 meters. Plugging these values into the formula gives: Perimeter = 2 × (5 meters + 3 meters) = 2 × (8 meters) = 16 meters. Therefore, the perimeter of the rectangle is 16 meters. This aligns with the calculation based on the defined dimensions of the rectangle, leading to the conclusion that the perimeter is accurately determined. The other options represent different calculations that do not utilize the correct perimeter formula or accurately account for the dimensions given. For instance, values such as 15 meters and 20 meters reflect incorrect summations or multiplications of the dimensions. Understanding the proper application of the perimeter formula is crucial for solving similar problems correctly.

When it comes to math, especially for tests like the Workkeys Math Test, sometimes the simplest questions can be the trickiest, right? Take, for instance, calculating the perimeter of a rectangle. It sounds straightforward, but it’s vital to grasp the concept thoroughly. Let’s look into it!

Imagine you’re faced with a question: “What is the perimeter of a rectangle that is 5 meters long and 3 meters wide?” This might seem like a piece of cake, but let’s unpack it step by step.

To find the perimeter of a rectangle, you can easily remember this handy formula:

Perimeter = 2 × (Length + Width)

In our case, the dimensions of our rectangle are:

• Length = 5 meters

• Width = 3 meters

So, let's substitute those values into our formula:

Perimeter = 2 × (5 meters + 3 meters)

This simplifies to:

Perimeter = 2 × (8 meters)

And then, you crunch those numbers:

Perimeter = 16 meters.

Voila! The perimeter of our rectangle is 16 meters. Now, you might wonder where those other options come from, like 15 meters or 20 meters. Typically, these incorrect answers arise from miscalculating or misunderstanding the formula and its application. It’s kind of like misreading a recipe—if you get one ingredient wrong, the whole dish can turn out differently, right?

Why does this matter? Well, understanding the proper application of the perimeter formula isn’t just about passing a test. This kind of basic geometry skill is essential, whether you’re measuring space for furniture, planning a garden, or even calculating materials for a DIY project. It’s all about using math in real life!

You see, questions like this may seem easy at first, but they challenge your foundational knowledge. It’s essential to approach them with confidence; after all, there’s a certain satisfaction that comes from solving a problem successfully.

So, the next time you encounter a question regarding perimeter, recall our formula and never hesitate to take a moment to double-check your calculations. Practice makes progress. And who knows—this understanding could help you ace other similar problems in your Workkeys study journey. You got this!