Christmas Treegonometry
Is your Christmas tree drowning in tinsel? Is it more ornament than tree? Can the Christmas lights be seen from space? There’s literally a solution: Christmas Treegonometry.

The University of Sheffield’s Maths society (SUMS) came up with a series of formulas for the perfectly decorated Christmas tree as part of a challenge by Debenhams department store.

“The formulas took us about two hours to complete,” said Nicole Wrightham, co-creator of the formulas. “We hope the formulas will play a part in making Christmas that little bit easier for everyone.”

There’s also an online calculator for those who’re as good at trigonometry as they’re at decorating Christmas trees.

Christmas Tree Formulas