Question

find the area of a triangle whose sides are 5,7 and 8 by herons formula​

Answer 1

Step-by-step explanation:

perimeter = 5+7+8/2

20/2

perimeter = 10

area = (s*(s-a)*(s-b)*(s-c))

= 10*(10-5)*(10-7)*(10-8)

= 10*5*3*2

= 300cm³

therefore the area of the given triangle is 300cm³