Heron’s formula for finding the area A of a triangle with sides a, b, and c is

where s is the semiperimeter, and

Consider the triangle, and work Exercises in order.

How do the answers in Exercises 158 and 161 compare?

Data from in Exercises 158 and 161

Use Heron’s formula to find the area of the entire triangle. Write it as a simplified radical.

Double the result from Exercise 160 to determine the area of the entire triangle.

Transcribed Image Text:

A = √s(sa) (s — b) (s — c), - -