Brain Teasers
Perfect Decagon?
Trick
Trick brain teasers appear difficult at first, but they have a trick that makes them really easy.Trick
Jo claimed "I can draw a perfect decagon using only a pencil. No ruler, no protractor, no compasses, nothing!"
She did it, even though she had never had any practice with drawing shapes, and she wasn't lucky. How?
She did it, even though she had never had any practice with drawing shapes, and she wasn't lucky. How?
Hint
What is a perfect decagon?Answer
Jo had simply drawn a shape with 10 sides. The teaser never said the decagon had to be regular. "Perfect" only meant fulfilling the requirements of a decagon; to have 10 sides, 10 angles etc.Hide Hint Show Hint Hide Answer Show Answer
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