Therefore, the radius of the circle that touches all the sides of \[\Delta ABC\] is equal to 6cm. Note: First of all be careful while calculating the value of semi perimeter i.e. S as sometimes we just add all the sides of the triangle and forget to divide it by 2 and we get the incorrect answer.
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Answer:
Therefore, the radius of the circle that touches all the sides of \[\Delta ABC\] is equal to 6cm. Note: First of all be careful while calculating the value of semi perimeter i.e. S as sometimes we just add all the sides of the triangle and forget to divide it by 2 and we get the incorrect answer.
Step-by-step explanation: