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The only shape that always has equal sides and equal angles is the square.
Other shapes can have equal sides and angles (like a triangle or octagon), but they are not by definition equilateral.
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I think it is worth noting that any regular polygon satisfies the definition. Conversely, as you point out, you have to explicitly specify that it is regular.
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What is a ten sided geometrical figure called?
A decagon - if the sides are all equal, and the angles are all equal, it is a regular decagon.
A four-sided figure with 4 equal sides and no right angles?
A four-sided polygon with all sides equal and no right angles would be a rhombus. A rhombus consists of two acute angles and to obtuse angles.
A rectangle with 4 right angles and all sides the same length?
Such a figure is called a square. Actually only one right angle is enough to force the the other angles to be right, and if three sides are equal, that forces all sides in such a figure to be equal. Exercise: Prove that any 4-sided figure( called a quadrilateral in math books) with three equal sides and one right angle is a square.
What does regular and irregular mean?
A regular polygon (a closed plane figure of straight lines) has all equal angles and all equal side lengths. For example, a square is a regular quadrilateral, because it's four edges are all the same length, and it's angles are all equal (90 degrees). A regular triangle is an equilateral triangle.An irregular polygon does not have equal sides and angles. N.B to be regular, a polygon must have both equal sides and equal angles. If a polygon has equal sides but unequal angles it is not a regular polygon.
What is a regular quadrilateral and what is another name for this shape?
A regular quadrilateral is a square. It is a four-sided figure with all sides being the same length and all angles equal (right angles).
What is a figure if all the sides have equal lengths and all the angles have equal measures?
The figure is a Regular polygon.
Which figure always has equal angles and equal sides?
an equilateral triangle has all its angle and sides equal
What is a figure with sides that have equal lengths and all the angles have equal measures?
polygon
What is a figure with sides the have equal lengths and all the angles have equal measures?
square
You are a plane figure with four sides all sides are of equal but adjacent angles are not equal What are you?
equilateral parallelogram
What is a plain figure in which all of the angles are right angles opposite sides are parallel and opposite sides are equal?
rectangles squares
Which figure has sides that have all equal lengths and all the angles have equal measures?
Any "regular" polygon.
What has 4 sides and all of them are equal?
If all of the sides are equal and it is a four sided figure then it is either a rhombus or a square. If all of the angles are also equal then it is a square.
Is a figure a square?
This depends what the figure is referencing. A figure is only a square if it has four sides, all equal, connected by four angles, all right angles (90°).
What figure has all equal sides and all angles have equal measures?
it is an equilateral trianglethanks for yaws other answers!
What is the term for a figure that has all sides are equal in length and opposite angles are congruent?
It is a Rhombus.
Properties of a square?
Four sided figure. All sides are the same length. All angles are equal. Four right angles. Both diagonals are equal.
