What Measurement is Required? Perimeter, Area or Volume?

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What is perimeter?

Back

Perimeter is the total distance around the outside of a shape. It is measured by adding the lengths of all the sides.

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When do we use perimeter?

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We use perimeter when we want to measure the distance around a shape, such as running around a field or building a fence.

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What is area?

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Area is the amount of space inside a shape. It is measured in square units.

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When do we use area?

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We use area when we want to measure the surface of a space, such as mowing the grass or planting grass seed.

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What is volume?

Back

Volume is the amount of space occupied by a 3D object. It is measured in cubic units.

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When do we use volume?

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We use volume when we want to measure how much space is inside a solid object, like filling a flowerpot with soil.

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How do you calculate the perimeter of a rectangle?

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To calculate the perimeter of a rectangle, add the lengths of all four sides or use the formula: P = 2(length + width).

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How do you calculate the area of a rectangle?

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To calculate the area of a rectangle, multiply the length by the width: A = length × width.

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How do you calculate the volume of a rectangular prism?

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To calculate the volume of a rectangular prism, multiply the length, width, and height: V = length × width × height.

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What units are used for measuring perimeter?

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Perimeter is measured in linear units, such as meters, feet, or inches.