Question

find
of
the
the area of a triangl, two sides
which are 18 cm and 10 cm and
perimeter is 42cm (using
Neron's formula).​

Answer 1

Answer:

I think u got help......thanks..........

Answer 2

Step-by-step explanation:

heron ' s formulae = s = a + b + c / 2

semi perimeter = √ s(s-a) (s-b) (s-c)

s = 42

a = 18cm

b = 10cm

42 = 18 + 10 + c / 2

84 = 28 c

c = 84/28

c = 3cm