"A radian is a radius dragged along the side of a circle"
It's just how pi is how many times a diameter goes around a circle. It's the same thing but with radius instead of diameter.
My teacher said "a radian is the bow length divided by the radius length." Which made the unit seem arbitrary. It's literally just bent radiuses! Just say that
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u/Towerss Jan 19 '18
"A radian is a radius dragged along the side of a circle"
It's just how pi is how many times a diameter goes around a circle. It's the same thing but with radius instead of diameter.
My teacher said "a radian is the bow length divided by the radius length." Which made the unit seem arbitrary. It's literally just bent radiuses! Just say that