Q15 of 42 Page 10

What is the key feature of tetrahedron?

Four faces which are all equilateral triangles.

More from this chapter

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13 What is the key feature of square based pyramid? 14 How many faces, corners and edges does a square pyramid have? 16 How many faces, corners and edges does a tetrahedron have? 17 What is the key feature of octahedron?