# 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

#### Fraction Foundations

Recognise simple fractions (halves, quarters and tenths) of whole numbers and shapes. So far this activity has been accessed 191 times and 36 Transum Trophies have been awarded for completing it.

Teacher: Click the play button in the centre of the video screen above. In the bottom right corner of the video (when you cursor moves over the playing video) is a broken square button which opens full-screen mode.

## 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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