`a = 2.5, b = 10.2, c = 9` Use Heron's Area Formula to find the area of the triangle.

Tuesday, October 18, 2016

Given: `a=2.5, b=10.2, c=9`

Heron's Area Formula `A=sqrt[s(s-a)(s-b)(s-c)]`

where `s=[a+b+c]/2`

`s=[2.5+10.2+9]/2=21.7/2=10.85`

`A=sqrt[10.85(10.85-2.5)(10.85-10.2)(10.85-9)]`

` ` `A=sqrt[10.85(8.35)(.65)(1.85)]`

`A=sqrt(108.94)=10.44`

The area is 10.44 squared units.

Notes