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 calculated by adding the lengths of all the sides.

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What is Area?

Back

Area is the amount of space inside a shape. It is measured in square units and calculated differently for various shapes (e.g., length x width for rectangles).

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What is Volume?

Back

Volume is the amount of space occupied by a three-dimensional object. It is measured in cubic units and calculated using formulas depending on the shape (e.g., length x width x height for rectangular prisms).

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When would you calculate Perimeter?

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You calculate perimeter when you need to find the distance around a shape, such as when adding a border or fencing.

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When would you calculate Area?

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You calculate area when you need to find the space inside a shape, such as when laying carpet or painting a wall.

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When would you calculate Volume?

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You calculate volume when you need to find how much space an object occupies, such as filling a pool or a container.

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Example of calculating Perimeter: A rectangle has sides of 4m and 6m. What is the perimeter?

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Perimeter = 2(4m + 6m) = 20m.

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Example of calculating Area: A rectangle has a length of 5m and a width of 3m. What is the area?

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Area = length x width = 5m x 3m = 15 square meters.

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Example of calculating Volume: A box has a length of 2m, width of 3m, and height of 4m. What is the volume?

Back

Volume = length x width x height = 2m x 3m x 4m = 24 cubic meters.

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What units are used for Perimeter?

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