2006-12-22 06:28:34 · 4 answers · asked by wicked 1 in Science & Mathematics ➔ Mathematics
It is used to find the area of a triangle given only the measurements of the sides.
Let's say you have triangle with sides: 3, 4 and 5.
First you take half the perimeter:
s = (a + b + c) / 2
s = (3 + 4 + 5) / 2
s = 12 / 2
s = 6
Now to find the area, Heron's formula is:
A = sqrt[ s (s - a)(s - b)(s - c) ]
A = sqrt[ 6 (6 - 3)(6 - 4)(6 - 5) ]
A = sqrt[ 6 (3)(2)(1) ]
A = sqrt[ 6 * 6 ]
A = sqrt(36)
A = 6
So a 3-4-5 triangle has an area of 6 square units.
2006-12-22 06:31:03 · answer #1 · answered by Puzzling 7 · 1⤊ 0⤋
Heron's Formula is used to find the area of triangles when you are given only the side lengths
2006-12-22 14:31:03 · answer #2 · answered by shamand001 2 · 0⤊ 0⤋
Heron's formula (or Hero's formula) relates an area of a triangle to its semipeerimenter (half of perimeter).
s=(a+b+c)/2
A=(s(s-a)(s-b)(s-c))^.5
or
square root of s(s-a)(s-b)(s-c))
2006-12-22 14:33:53 · answer #3 · answered by Edward 7 · 0⤊ 0⤋
u already got ur answer
the first one
2006-12-22 14:38:20 · answer #4 · answered by dreamgirl 2 · 0⤊ 2⤋