Triangular Pyramid
A one stop resource

Learn how you can stop the dreaded Summer Math Loss and send your child back to school in September feeling like a math super hero! Watch this free video training!

When people think of a triangular pyramid, most will automatically think of it as a type of Platonic Solid - the Tetrahedon. So I feel I must clarify this first.

Every tetrahedron is a triangular pyramid, but every triangular pyramid is NOT a tetrahedron. It is only a Platonic Solid if all it's faces are congruent, regular polygons, in this case

if every triangle is equilateral and equal in size.


Base Shape



The three side faces are triangles and the base is also a triangle.


4 Vertices


6 Edges

Surface Area

Where: t = lateral height;

P = Perimeter of Base;

B = Area of Base


I hope you find this resource helpful. If you have any comments or suggestions, on how I can make this geometry resource better for you

please don't hesitate to contact me.

Return from triangular pyramid to the main pyramid section.


Return to our k6 geometric shapes home page to explore more great basic geometry sections.

I am sure you will find all the information and worksheets you need here, however if there is anything you cannot find please don't hesitate to contact me or simply visit the K6Math CafĂ© and join the conversation!

I love to hear from my readers, and with a little feedback and a few suggestions I can make this a great resource for parents, teachers and tutors alike.

Be sure to explore everything on this site starting at the home page.