You have made two 3D shapes from nets.​ ​

  • Talk about it: Describe how the net is related to its 3D shape. Try to explain it to a younger child.​

The surface area of a 3D shape is the sum of the areas of the faces of the shape. These faces make up the net of the 3D shape.

Calculate the surface area of this rectangular prism. Sketch a net to help you.Answerrectangular prism surface area

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