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If a three-sided figure (triangle) has one angle that is zero, then all angles will be zero and the three sides will be coincident, that is, they will occupy the same space and will, therefore form a single line. Such a figure would not be referred to as a triangle, and would have little practical value in trigonometry (the study of triangles).
Therefore, every triangle has three angles greater than zero degrees, whether it be isoceles, right-angled, equilateral, or any other.
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Can a acute triangle be an obtuse triangle?
No, all three angles must be less than 90 degrees each in an acute triangle. In an obtuse triangle one of the angles is greater than 90 degrees. A triangle with a 90 degree angle is called a right triangle.
What are the angles of an isosceles triangle called?
...angles
Triangles with all angles less than 90 degrees?
this is known as an acute triangle acute triangles-no angles congruent or greater than 90 degrees right-one angle equal to 90 degrees obtuse-triangle with one angle greater than 90 degrees
What is a triangle called in which all 3 angles measure 60degrees?
A triangle with all three angles measuring 60 degrees is called an equilateral triangle.
If the angles in a triangle are 30 degrees 60 degrees and 90 degrees is called what type of triangle is it?
A right angles triangle, as one of the angles in the triangle is 90 degrees.
Can a acute triangle be an obtuse triangle?
No, all three angles must be less than 90 degrees each in an acute triangle. In an obtuse triangle one of the angles is greater than 90 degrees. A triangle with a 90 degree angle is called a right triangle.
A triangle that has one angle greater than 90 degrees?
this is called an obtuse triangle the triangle that has one angle 90 degrees is called a right traingle a triangle that has 3 angles less than 90 degrees is called an acute triangle
How man angles does a triangle have?
A triangle has 3 angles and 3 sides, which is why it is called a TRIangle.
What are the angles of an isosceles triangle called?
...angles
How can a triangle be classified in two ways?
You can classify a triangle by its sides, or by its angles.To classify a triangle by its sides:1- A triangle with three sides that are equal in length is called an equilateral triangle.2- A triangle with two sides of the same length and one different is called an isosceles triangle. 3- A triangle with no sides of equal length is called a scalene triangle. To classify a triangle by its angles: 1- A triangle with three angles that are greater than 0 and less than 90 degrees is called an acute triangle.2- A triangle with one angle that is 90 degrees exactly is called a right angle triangle.3- A triangle with one angle that is greater than 90 degrees is called an obtuse triangle.
Triangles with all angles less than 90 degrees?
this is known as an acute triangle acute triangles-no angles congruent or greater than 90 degrees right-one angle equal to 90 degrees obtuse-triangle with one angle greater than 90 degrees
What is a triangle with no congruent angles?
It is called a Scalene triangle
What is a triangle called in which all 3 angles measure 60degrees?
A triangle with all three angles measuring 60 degrees is called an equilateral triangle.
If the angles in a triangle are 30 degrees 60 degrees and 90 degrees is called what type of triangle is it?
A right angles triangle, as one of the angles in the triangle is 90 degrees.
How many acute angles are there in a triangle?
There may be either 2 or 3.If there are only 2, the third angle is equal to or greater than 90 degrees.(the sum of the three angles must equal 180 degrees)If there are 3, the triangle is called an acute triangle.
What triangle has a 120 degree angle 35 degree angle and a 25 degree angle?
When a triangle has no angles =to 90 degrees, it is called an oblique triangle.When one of the angles of an oblique triangle is greater than 90 degrees, it can also be called an obtuse triangle.Technically, the triangle described would also be a type of scalene triangle, although we should only call it this when it is defined by the length of its sides, rather than by its internal angles.
What is a triangle right equilateral scalene isosceles?
A triangle in which one angle is equal to 90o is called a right triangle. A triangle in which all sides are equal (or) all the angles are equal to 60o is called an equilateral triangle. A triangle in which any two sides or any two angles are equal is called an isosceles triangle. A triangle in which all the sides or angles are different is called a scalene triangle.
