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1. It has 3 sides.
2. It has 3 angles.
3. One is side a.
4. The angle opposite side a is Angle A.
5. The sceond side is side b.
6. The angle opposite side b is angle B.
7. The third side is side c.
8. The angle opposite side c is angle C.
9. All sides have equal lenght.
10. All angles have equal measures.
11. Each angle is 60 degrees.
12. The bisector of angle A will bisect side a.
13. The bisector of angle B will bisect side b.
14. The bisector of angle C will bisect side c.
15. Each bisector is perpendicular to the opposite side.
16. Each bisector creates a 30, 60, 90 right triangle.
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What is the perimeter of an equilateral triangle with an altitude of 15?
An equilateral triangle has 3 equal interior angles each of 60 degrees. There are two right angled triangles in an equilateral triangle. So we can use trigonometry to find the length of one side of the equilateral triangle then multiply this by 3 to find its perimeter. Hypotenuse (which is one side of the equilateral) = 15/sin 60 degrees = 17.32050808 17.32050808 x 3 = 51.96152423 Perimeter = 51.96152423 units.
What is another name for a equilateral triangle?
An equilateral triangle can also be called a "regular" triangle
FORMULA- area of equilateral triangle?
Area of Equilateral Triangle A= S2 * (Root 3)/4, where A= Area of the triangle S= Side of the triangle.
What kind of of triangle has 3 lines of symmetry?
An EQUILATERAL Triangle. Two lines of symmetry is ISOSCELES Triangle No lines of symmetyry is SCALENE Triangle.
An equilateral triangle with sides measuring 8cm 9cm and 10 cm?
This is not an equilateral triangle.
