Given:
AC = √(-2-3)² + (6-2)²
AC = √ -5² + 4²
AC = √ 25 + 16
AC = √41
AC = 6.40
I am assuming that the triangle is an equilateral triangle. This means that all sides are equal.
AC = AB = BC
Perimeter = 6.40 * 3 sides = 19.20
Step 1: subtract 773,773 from 183,183,973
183,183,973 - 773,773 = 182,410,200
step 2: divide 182,410,200 by 2
182,410,200/2 = 91,205,100
Country B: 91,205,100 sq kilometers
Country A: 91,205,100 + 773,773 = 91,978,873 sq kilometers
The square root of 23, or √23 = <span>4.795831...
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