Question

AFLATI RAZA CERCULUI INSCRIS IN IN TRIUNGHIUL ABC CU LATURILE
AB=14 BC =16 CA=18

Answer 1

r = s/p

s = radical p (p - a)(p - b)(p - c)

p = (a + b + c) : 2 = (14 + 16 + 18) : 2 = 48 :2 = 24

s = radical 24(24 -16)(24 -14)(24 - 18) = radical  24 x 8 x 10 x 6 =

= radical 11520 = radical 2304 x 5 = 48 radical 5


r = 48 radical 5 / 24 =  2 radical din 5