SOLUTION: Find the area of the triangle with side lengths 4, 5, and 8.

Algebra ->  Triangles -> SOLUTION: Find the area of the triangle with side lengths 4, 5, and 8.       Log On


   



Question 1210260: Find the area of the triangle with side lengths 4, 5, and 8.

Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
.
Find the area of the triangle with side lengths 4, 5, and 8.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Use the Heron's formula.

ANSWER. The area of the triangle is 8.1815 square units, approximately.


I used the online calculator
https://www.omnicalculator.com/math/herons-formula

one of many possible online calculators of this kind.


The referred calculator/web-site has all necessary descriptions and explanations
to the formula, and even a proof of it.