Is there any relation between circumradius, inradius and the angles associated with a triangle? Any help will be appreciated.
2026-05-05 16:58:33.1778000313
Relation between circum radius, inradius and the angles.
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$r=4R\sin (\frac {A}{2})\sin (\frac {B}{2})\sin (\frac {C}{2}) $ where $r,R $ are inradius and circumradius respectively