Question

4 Write down the name of the solid shape that Harsha is describing.
put two identical solid shapes together. The number of faces on the new
shape is two more than the number on one of the original shapes.​

Answer 1

Answer:

When we put two solid shapes together then one face of one solid shape is covered by one of the other shapes. So, the total face number is calculated by subtracting 2 faces from the solid shape faces counted twice. So the number of faces of the original shape is 4. Therefore the solid is a tetrahedron.

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