Monday, February 20, 2012

Precalculus, Chapter 6, 6.2, Section 6.2, Problem 37

Given: a=8, b=12, c=17
Heron's Area Formula A=sqrt[s(s-a)(s-b)(s-c)]
where s=[a+b+c]/2
s=[8+12+17]/2=37/2=18.5
A=sqrt[18.5(18.5-8)(18.5-12)(18.5-17)]
A=sqrt[18.5(10.5)(6.5)(1.5)]
A=sqrt(1893.94)=43.52
The area is 43.52 square units.

No comments:

Post a Comment

Why is the fact that the Americans are helping the Russians important?

In the late author Tom Clancy’s first novel, The Hunt for Red October, the assistance rendered to the Russians by the United States is impor...