Question

hi ..

my new question ..

Find the area of triangle in which each side is like this .
a = 13cm b= 14 c= 15

Answer 1

A=13,

b=14,

c=15


S=a+b+c/2


=13+14+15/2


=21cm


Area=root over of21*8*7*6


=3*7*7*2*2*2*2*3=3*2*2*7

=84cm sq.

OR

By using herons formula 


We get

s=13+14+15/2


S=21cm


Now area=√s(s-a) (s-b) (s-c) 


√21(21-13)(21-14)(21-15)


√21(8)(7)(6)


√21(336)


√7056


84 cm² is the area

Answer 2

Answer:

here is ur required answer