how to find the area of equilateral triangle if the only given is the radius? tnx
2007-02-28 12:55:17 · 6 answers · asked by Anonymous in Education & Reference ➔ Homework Help
Remember that an equilateral triangle has all the same length sides. So all you NEED is the 'radius'. Everybody has already given you the formula.
2007-02-28 13:06:21 · answer #1 · answered by Anonymous · 0⤊ 0⤋
If this is an equilateral triangle inscribed in a circle and the radius is the distance from the center of the circle to one vertex of the triangle, then the formula is (1.5*sqrt(3)*r^2)
2007-02-28 16:10:33 · answer #2 · answered by PZ 4 · 0⤊ 0⤋
1/2 BASE x height
2007-02-28 12:58:15 · answer #3 · answered by ? 2 · 0⤊ 1⤋
a radius is in a circle isn't it?
2007-02-28 12:59:26 · answer #4 · answered by silver rose 2 · 0⤊ 1⤋
bxh/ 2
2007-02-28 12:58:08 · answer #5 · answered by Bon 3 · 0⤊ 1⤋
http://www.mathwords.com/a/area_equilateral_triangle.htm
2007-02-28 12:58:29 · answer #6 · answered by cmhurley64 6 · 1⤊ 0⤋