Question

calculate the length of the radius of an inscribed circle in a right angle triangle the base is given as 6 CM while perpendicular is given as 8cm

Answer 1

radius of the incircle of triangle= area/semi perimeter 




p is half the perimeter, or 




 P=(18+24+30)/2 = 36
 A=square root of (36(36-18)(36-24)(36-30))
    =square root of (36*18*12*6)
    =216 s.cm

radius of the incircle of triangle= 216/36=6cm