What is perimeter?

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Prepare for the Maryland Comprehensive Assessment Program (MCAP) Test. Use our multiple choice questions and flashcards to understand MCAP terms deeply. Hints and explanations are available for each question to help you succeed. Start your journey to test readiness today!

Multiple Choice

What is perimeter?

Explanation:
Perimeter is the distance around the boundary of a two-dimensional shape, found by adding up the lengths of all the sides. For example, a rectangle with sides 3 units and 4 units has a perimeter of 3 + 4 + 3 + 4 = 14 units. The space inside the shape is called area, which is measured in square units, not the distance around. For a three-dimensional figure, you would talk about volume or surface area, not perimeter. The ratio of width to height is called an aspect ratio, not perimeter. So the best definition is the boundary distance—the sum of all side lengths.

Perimeter is the distance around the boundary of a two-dimensional shape, found by adding up the lengths of all the sides. For example, a rectangle with sides 3 units and 4 units has a perimeter of 3 + 4 + 3 + 4 = 14 units. The space inside the shape is called area, which is measured in square units, not the distance around. For a three-dimensional figure, you would talk about volume or surface area, not perimeter. The ratio of width to height is called an aspect ratio, not perimeter. So the best definition is the boundary distance—the sum of all side lengths.

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