This collection of tasks is part of the activities for 14-16 year olds section of the Maths At Home feature. To get the most out of the activities below, you'll need to be able to print out a few resources. The stars represent the challenge level, with three stars indicating the most challenging activities.

You may also wish to explore Print it Out for 11-14 year olds, and Print it Out for 16-18 year olds.

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### Pick's Theorem

Polygons drawn on square dotty paper have dots on their perimeter (p) and often internal (i) ones as well. Find a relationship between p, i and the area of the polygons.

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### Of all the areas

Can you find a general rule for finding the areas of equilateral triangles drawn on an isometric grid?

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### Product Sudoku

The clues for this Sudoku are the product of the numbers in adjacent squares.

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### LCM Sudoku

Here is a Sudoku with a difference! Use information about lowest common multiples to help you solve it.