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How can we find the angle sum of any polygon?

How can we find the angle sum of any polygon?

Screenshot from The Geometer's Warehouse

More geometric investigations can be found at The Geometer’s Warehouse.

Link to section 1 - Unravel the mysterious pattern

Unravel the mysterious pattern

Link to section 2 - What have you discovered?

What have you discovered?

Link to section 3 - Learn more

Learn more

Teaching Notes (.docx 32kB)