Question

Find the sum of a triangle whose sides are 12cm, 6 cm and 15cm using heron's formula.​

Answer 1

Step-by-step explanation:

heron's formulae = √s(s-a)*(s-b)*(s-c)

let, a=12cm

b=6cm &

c=15cm

s= a+b+c/2

s= 12+6+15/2=33/2 =16.5

heron's formulae=√16.5(16.5-12)*(16.5-6)*(16.5-15)

=√16.5(4.5)*(10.5)*(1.5)

=√16.5*4.5*15.75

=√2498.75*4.5

√11244375