isosceles
right
isosceles right angle triangle
A right angle triangle.
A triangle with two 45 degree angles would have one 90 degree angle.It would be a right triangle.Further Information:-It is an isosceles right angle triangle
All angles of an equilateral triangle are congruent, in other words, they all have the same angle measure. Since these three equal angles must add up to 180 degrees, each angle must have the measure of 60 degrees. This is because 60 X 3 = 180 degrees. So, the angles of an equilateral triangle are all equal to 60 degrees. An angle that is less than 90 degrees is an acute angle, and since 60 is less that 90, the angles of an equilateral triangle are acute.
two angles
All triangles have 3 interior angles that add up to 180 degrees and the 4 interior angles of a quadrilateral add up to 360 degrees but if 2 of its vertices are joined by a diagonal this marks out 2 interior triangles each having 3 interior angles adding to 180 degrees.
A right angle triangle.
A triangle with two 45 degree angles would have one 90 degree angle.It would be a right triangle.Further Information:-It is an isosceles right angle triangle
Nouns are not describing words. The word triangle is a noun. Adjectives are used to describe noun. Some adjectives that describe a triangle are:equilateralscaleneisoscelesacuteobtuse
An equilateral triangle is when all angles and sides are equal throughout the triangle. If the triangle has same sides then it has same angles. Acute triangle is when all angles in the triangle are under 90 degrees. Since all triangles have three angles, and the sum of all angles within any traingle equals 180degrees, we must divide 180degrees by 3 angles.... 180deg/3A= 60deg per angle... This is the only option since there is only one equilateral triangle set of angles (60/60/60). And all the angles are under 90 deg. So in other words an equilateral triangle is an acute triangle.
In geometry, an angle is the figure formed by two rays sharing a common endpoint, called the vertex.A triangle is a geometric shape formed by three angles ("triangle" from the words "tri" and "angle" literally meaning "THREE ANGLES")
Certainly not. In an equilateral triangle, in which all sides and all angles are congruent (or in other words, are the same) then all angles are 60o angles, there is no 90o angle and therefore it is not a right triangle. A typical right triangle would have angles of 90o, 60o, and 30o, and each of the three sides would be a different length.
Obtuse, scalene
A right triangle is a triangle in which one of the three angles measures 90°. In other words, it is a triangle with two sides that are perpendicular to each other.
A right angle has one angle, notice the words, "A right angle" (emphasis on the "A"), if it were a right triangle it would have 3 angles (TRIangle, tri means three).
In a triangle, if an angle is adjacent (shares a side) and supplementary (adds up to 180 degrees) to one of the interior angles, it means that the two angles together form a straight line. In other words, the three angles of the triangle add up to 180 degrees.
The definition of a triangle is the union of segments AB, BC, and AC (where A, B, and C are not all collinear).
There must be 2 of them.-- The 3 angles inside a triangle always add up to 180 degrees.-- An obtuse triangle has one angle that's greater than 90 degrees.-- That leaves less than 90 degrees total for the other 2 angles.-- So they must be less than 90 degrees apiece.-- In other words, "acute angles".