Using Heron's formula to find Area of a triangle

Question: Consider Heron's Formula.
Consider Heron's Formula.

If the three sides of a triangle have lengths a, b, and c, then the area A of the triangle is given by A = s(s − a)(s − b)(s − c)  where the semiperimeter of the triangle is s = 1/2 (a+b+c).

,(a. )Find the semi perimeter (in inches) of a triangle whose sides measure 12 in., 16 in., and 20 in.s =   (b) Using Heron's Formula, find the area (in square inches) of a triangle whose sides measure 12 in., 16 in., and 20 in.A =  

------------------------

Answered By:

Susan R.
Certified and Experienced High School Mathematics teacher with M.Ed

------------------------

------------------------

About: Wyzant Ask an Expert offers free answers to your toughest academic and professional questions from over 65,000 verified experts. It’s trusted by millions of students each month with the majority of questions receiving an answer within 1 hour of being asked. If you ever need more than just an answer, Wyzant also offers personalized 1-on-1 sessions with experts that will work with you to help you understand whatever you’re trying to learn.