Question

find the area of triangle whose side are 15 CM , 12 cm and 13 cm​

Answer 1

Answer:

74.83cm

Step-by-step explanation:

Answer 2

Answer:

84

Step-by-step explanation:

Given sides of triangle

a=13,b=14,c=15

Semi-perimeter s=  

​

(13+14+15)/2 = 21

Area, A =  

root of s(s−a)(s−b)(s−c)

​  

A=  

root of 21(21−13)(21−14)(21−15)

​

 

A=84 $cm^{2}$