"Surface Area of ​​Cuboids and Cubes" Cuboids and Cubes PPT Courseware 3

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"Surface Area of ​​Cuboids and Cubes" Cuboids and Cubes PPT Courseware 3

1. Fill in the blanks orally:

(1) The cube has ( ) faces, they are all ( ), and the ( ) on each face of the square are equal;

(2) This is a ( ), its edge length is ( ) cm, and the sum of its edge lengths is ( ) cm.

Do it: the edge length of a cube is 1.2 decimeters, find its surface area.

1. Decide whether it is right or wrong and explain the reasons:

1) A cuboid with equal length, width and height is called a cube. ( )

2) For a cube with an edge length of 4 decimeters, its surface area formula is 4 × 6, and the result is 48 square decimeters. ( )

3) Use four small cubes of the same size to form a cuboid. The surface area of ​​this cuboid is smaller than the sum of the surface areas of the original four small cubes. ( )

2. What is the surface area of ​​a cube?

The total area of ​​the six faces of a cube is called its surface area.

3. How to calculate the surface area of ​​a cube?

Edge length × Edge length × 6 or Edge length × 6

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Update Time: 2024-11-21

This template belongs to Mathematics courseware People's Education Press fifth grade mathematics volume 2 industry PPT template

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