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$If (Cos α, \sin α, 0), (\cos β, \sin β, 0), (\cos γ, \sin γ, 0) are vertices of a triangle then circum radius R is$

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detailed solution

Correct option is A

Clearly the vertices are equidistant from the origin. ∴origin O is the circumcenter of the triangle. ∴circumradius R=OA=1

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If (Cos⁡α,sin⁡α,0),(cos⁡β,sin⁡β,0),(cos⁡γ,sin⁡γ,0) are vertices of a triangle then circum radius R is

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$If (Cos α, \sin α, 0), (\cos β, \sin β, 0), (\cos γ, \sin γ, 0) are vertices of a triangle then circum radius R is$