In this above picture, there are 15 cups, to make a perfect pyramid, you start the bottom row with 5 cups. What is the formulae to start the bottom row, if I have $n$ cups.
873 Cups Pyramid Stock Photos - Free & Royalty-Free Stock Photos
Bmag Counting Bears with Matching Sorting Cups
Amazing Mathematical Fractal Pyramid Decoration, Physics, Math, Geometry, Education All in One.
Sphere Shape - Math Steps, Examples & Questions
geometry - Tiling of squares in instances of Pythagoras Theorem - Mathematics Stack Exchange
trigonometry - Proving that the volume of a pyramid is one-third
Math Vocabulary Pictures™ – Lone Star Learning
Cups Pyramid Stock Illustrations – 121 Cups Pyramid Stock Illustrations, Vectors & Clipart - Dreamstime
Parent Functions Poster, Mathematics Prints for Classroom Decor
Why is math hard for most people? - Quora
Cup Stacking - Programming
Diagram of cup stacking task.
VCE Foundation Maths UNITS 1 &2 uncorrected sample pages by cambridge_aused - Issuu
3d - Visualising regular pyramids - Mathematics Stack Exchange
combinatorics - Triangle dissection, no shared edges - Mathematics