(look at it as A,B,C,D)
A(8,16) and B(15,10) are given.
2 equilateral triangles ABC and ABD are constructed.
So AB = AC = AD = BC = BD.
Anybody got a relatively quick way of getting C's and D's coordinates?
I keep needing a couple...
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It is given that in an equilateral triangle , inradius = (1/3) *height and circumradius = (2/3)*height.
But both inradius and circumradius are perpendicular bisectors in an equilateral triangle and they should be equal. why do we have different formulae for inradius and circumradius?
Ever notice that mathhelpforum equilateral triangle logo? You know how some things are there but never really paid much attention. Got fixated about that logo for a few days and then after some hard drinking, came to realize that it figured in some problem that I once ran into. Senior moment...
The sum of the perimeter of a equilateral triangle and square is 10. Find the dimensions of the triangle of and square that produce a minimum total area.
Perimeter of square is 4x.
Perimeter of Equilateral is 3y.
Area of square is x^2.
Area of Equilateral triangle is...
Over the sides of an arbitrary triangle ABC from the outside are constructed isosceles triangles with an angle of 120^o at the top.
Prove that the three vertices of this triangles form an equilateral triangle (triangle DFE on picture).
Angles: AFC=AEB=BDC= 120^o
I need to calculate the coordinates of two corners of an equilateral triangle if I have the coordinates of the center, the coordinates of one corner point, and the distance from the center to a point. This is for a Java program I'm writing, and it's been a while since I did math like this. The...
Three wooden equilateral triangles of side length 18 inches
are placed on axles as shown in the diagram to the right. Each axle
is 30 inches from the other two axles. A 144-inch leather band is
wrapped around the wooden triangles, and a dot at the top corner is
painted as shown. The three...
I have a question on my maths assignment I need some help with.
The question says - Make a conjecture about the nature of a triangle where the Incentre and the Circumcentre are the same point. Prove your conjecture.
I know that its going to be an equilateral triangle, and I think I...
Prove that a triangle is equilateral if and only if the circumcenter and incenter coincide.
- Incenter is the center of the inscribed circle (incircle) of the triangle, it is the point of intersection of the angle bisectors of the triangle.
- The circumcenter of a triangle is...
Hey guys so i have an impossible problem that needs to be solved. So this equilateral triangle's sides are divided into three equal parts. There are lines drawn from the corners of the triangle to the one of the parts divided. Those lines then create a smaller equilateral triangle (shaded area)...