None, two or three
It has 3 sides It has 3 exterior angles that add up to 360 degrees It has 3 interior angles that add up to 180 degrees It has a perimeter which is the sum of its 3 sides It has an area which is: 0.5*base*perpendicular height It has no diagonals It will tessellate It can be a scalene triangle having 3 different acute angles It can be an obtuse triangle having 1 obtuse angle and 2 different acute angle It can be a right angle triangle having a 90 degree angle and 2 acute angles It can be an isosceles triangle having 2 equal sides and 2 equal acute angles It can be an equilateral triangle having 3 equal sides and 3 equal 60 degree angles It is subject to the rules of trigonometry
it has 2 equal sides
An equilateral triangle has three equal sides1. 1. Any triangle has only three sides. A triangle is a closed figure that is bounded by three straight lines.
An equilateral triangle has all three angles equal and they must sum to 180 degrees. So 180 divided by 3 is 60 which is an acute angle. There are three acute angles in an equilateral triangle.
In an acute triangle, all three angles are acute.
None because no triangle has any parallel sides.
A scalene triangle has no equal sides.
Three equal sides in the form of an equilateral triangle and two equal sides in the form of an isosceles triangle
Every triangle has 3 sides but with a equilateral triangle all sides are equal
a regular or scalene triangle has no equal sides
An equilateral triangle has 3 equal sides
All 3 sides are equal in an equilateral triangle. 2 sides are equal in an isosceles triangle. no sides are the same in a scalene triangle.
There are 2 equal sides
a scalene triangle has no sides equal
It has 3 sides It has 3 exterior angles that add up to 360 degrees It has 3 interior angles that add up to 180 degrees It has a perimeter which is the sum of its 3 sides It has an area which is: 0.5*base*perpendicular height It has no diagonals It will tessellate It can be a scalene triangle having 3 different acute angles It can be an obtuse triangle having 1 obtuse angle and 2 different acute angle It can be a right angle triangle having a 90 degree angle and 2 acute angles It can be an isosceles triangle having 2 equal sides and 2 equal acute angles It can be an equilateral triangle having 3 equal sides and 3 equal 60 degree angles It is subject to the rules of trigonometry
Two sides of an isosceles triangle are equal to each other.
All three sides of an equilateral triangle are..."equal" in length.