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Halp! My 6 year old is learning geometric shapes, and wants to know how to construct a _Left Angle Triangle_.

@rahul What? Never heard of a left angle triangle. Google tells me “A triangle is said to be left-angled if it has an angle equal to 90 degrees on its left side.”, which to me still opens the question what is the left (or right) side of a triangle. Further research indicates that a right-angled triangle has the shape of an “L”, still I cannot remember to have ever heard about the term 🤔

@stephan Indeed, there isn't one. The right here seems to come from *rectus* in Latin meaning *upright*, which is not easy to explain to a six year old.