# Circles Connected to a Triangle

**1)** If denotes in-radius, then

**2) **The circum radius is given by

** **

**3) **If denotes radii, then

**4) **

**5) **In an equilateral triangle

**1)** If denotes in-radius, then

**2) **The circum radius is given by

** **

**3) **If denotes radii, then

**4) **

**5) **In an equilateral triangle

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