Chapter 8.CR, Problem 5CR

### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Chapter
Section

### Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

# In Review Exercises 4 to 5, draw △ A B C , if necessary, to solve each problem. Given: A B = 30 , B C = 26 ,  and  A C = 28 Find: A A B C

To determine

To find:

AABC

Explanation

Heronâ€™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(sâˆ’a)(sâˆ’b)(sâˆ’c)

Where the semi perimeter of the triangle is

s=12(a+b+c)

Calculation:

Consider the â–³ABC with AB=30,Â BC=26,Â andÂ AC=28.

Let AB=c=30,Â BC=a=26,Â AC=b=28.

The figure is shown below:

Semi perimeter of the triangle s=12(a+b+c)

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