Question

Area of a triangle having side 3 cm, 4 cm, 5 cm is

Answer 1

Answer:

perimeter of triangle=3+4+5=12 cm

semi perimeter, s=12/2=6cm

area of triangle=root of [s(s-a)×(s-b)×(s-c)]

                         = root of [6(6-3)×(6-4)×(6-5)]

                         = root of [6×3×2×1]

                         = root of [36]

                         = 6 cm²

Step-by-step explanation: