Tetrahedron and Pyramid

A tetrahedron and a pyramid have edges of equal length. If they are glued together on a triangular face with the vertices aligned, how many faces will the new shape have?

Time: 3:47

 

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Fractions by Wholes

Fractions by Wholes

An exercise on multiplying and dividing proper fractions and mixed numbers by whole numbers. So far this activity has been accessed 56 times and 5 people have earned a Transum Trophy for completing it.

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Tetrahedron and Pyramid

A tetrahedron and a pyramid have edges of equal length. If they are glued together on a triangular face with the vertices aligned, how many faces will the new shape have?

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