answersLogoWhite

0


Best Answer

D2d AND D3h

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the point group for isosceles and equilateral triangle?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Geometry

Does Every equilateral triangle has point symmetry?

answer this question please


What is the angle of rotation for a point on a circle for drawing an equilateral triangle?

120


Can an isosceles triangle be a right angle triangle?

no an isosceles triangle can not be a right angle triangle because with an isosceles the two sides meet at a point creating a vertisce which a right angle triwngle does not have hope this helpsImproved Answer:-Yes it can providing the interior angles are 90 45 45 degrees which will give a triangle of two equal sides making it both an isosceles triangle and a right angle triangle.


How would you construct an isosceles triangle if only given the vertex angle and the radius of the circumscribed circle?

You have an isosceles triangle, and a circle that is drawn around it. You know the vertex angle of the isosceles triangle, and you know the radius of the circle. If you use a compass and draw the circle according to its radius, you can begin your construction. First, draw a bisecting cord vertically down the middle. This bisects the circle, and it will also bisect your isosceles triangle. At the top of this cord will be the vertex of your isosceles triangle. Now is the time to work with the angle of the vertex. Take the given angle and divide it in two. Then take that resulting angle and, using your protractor, mark the angle from the point at the top of the cord you drew. Then draw in a line segment from the "vertex point" and extend it until it intersects the circle. This new cord represents one side of the isosceles triangle you wished to construct. Repeat the process on the other side of the vertical line you bisected the circle with. Lastly, draw in a line segment between the points where the two sides of your triangle intersect the circle, and that will be the base of your isosceles triangle.


What is a equilateral polygon?

In geometry, an equilateral polygon is a polygon which has all sides of the same length. For instance, an equilateral triangle is a triangle of equal edge lengths. All equilateral triangles are similar to each other, and have 60 degree internal angles. : Any equilateral quadrilateral is a rhombus, which includes the square. : An equilateral polygon which is cyclic (its vertices are on a circle) is a regular polygon. Not all equilateral polygons are convex: all equilateral polygons with more than four sides, such as the pentagon, can be concave. Viviani's theorem holds for equiangular polygons (and also holds for equilateral ones): : The sum of distances from a point to the side lines of an equiangular [or equilateral] polygon does not depend on the point and is that polygon's invariant.

Related questions

How do you find point symmetry for an equilateral triangle?

An equilateral triangle has 3 lines of symmetry which perpendicularly bisects each of its vertices


Does Every equilateral triangle has point symmetry?

answer this question please


What shape has 3 angles 2 of which are equal?

a triangle with two sides the same length i forgot what the proper name for it was'Equilateral triangle' is the fancy name. If two sides of a triangle are the same length then two of the angles should also be the same size. Woh Sorry I meant Isosceles triangle. (thanks whoever you are) I can't believe I got that wrong, how embarrassing.- yeah hahano, a equilateral triangle has 3 angles with all of them equal. that's the point of the word Equilateral so no its not a equilateral triangle and sorry to the guy who did the other thing


What is the shape of a delta?

An equilateral triangle, with the point facing up. Δ


What is the angle of rotation for a point on a circle for drawing an equilateral triangle?

120


Can an isosceles triangle be a right angle triangle?

no an isosceles triangle can not be a right angle triangle because with an isosceles the two sides meet at a point creating a vertisce which a right angle triwngle does not have hope this helpsImproved Answer:-Yes it can providing the interior angles are 90 45 45 degrees which will give a triangle of two equal sides making it both an isosceles triangle and a right angle triangle.


What concurrent point in a triangle does not exist on Euler's line?

The incentre - except in an equilateral triangle where it coincides with the centroid (for example).


Can the orthocenter incenter centroid and circumcenter of a triangle all meet at the same point?

Yes, but only in an equilateral triangle.


Does every isosceles triangle have at least one line of symmetry?

Yes, every isosceles triangle has at least one line of symmetry, usually drawn down the middle from the top point, down in the middle of the triangle's base.


Can a median divide a triangle in equal area?

Sure. That's true of a median in every isosceles triangle, and every median in an equilateral triangle. In fact it is true for any median of any triangle. The two parts may not be the same shapes but they will have the same area. That is why the point where the three medians meet (centroid) is the centre of mass of a triangular lamina of uniform thickness.


What must A measure in order for ABC to be isosceles?

Are you talking about the angle A. If you are then at what point of the triangle is the angle A.


How do you draw an isosceles triangle?

One way would be to draw a square and then draw the diagonal of the square. You now have two isosceles triangles. Another way would be to draw two line segments that intersect at a point. Take a compass and put the point at the intersection and set some arbitrary length to draw an arc. Now draw the arc between the two line segments to "connect" them. Then use a straight edge to draw another line segment between the points where the arc cuts the line segments, thus creating a triangle. The compass has marked off equal lengths along the line segments, so those sides of the triangle are equal. An isosceles triangle has two equal sides. As an extra point, an equilateral triangle is isosceles, but it is a special case of an isosceles triangle. The later construction method is pretty straight forward (less involved) than the first, but both are 100% correct. And both methods can be accomplished using the classic "compass and straight edge method" from the days of the ancients!