What are the three corners of an isosceles triangle called?

What is it called? That's asking for a name.

There are three corners in an isosceles triangle, of which the angle between the two waists is called the top angle, and the angle between the waist and the bottom is called the bottom angle.

According to the nature of an isosceles triangle, the two base angles are equal.

Isosceles triangle related concepts.

Because it is an isosceles triangle, there are two equal angles, the two equal angles are called the base angle, and the other two angles are different from the top angle. Equilateral triangles are special isosceles triangles.

There are two triangles with equal sides, which are isosceles triangles, the two equal sides are called the waist, the other side is called the bottom edge, the angle between the two waists is called the top angle, and the angle between the waist and the bottom edge is called the bottom angle.

The two angles of an isosceles triangle at the same angle are called the base angle, and the remaining one corner is called the top angle.

Isosceles triangle.

It is divided into ordinary isosceles triangles and common isosceles right triangles.

1) An isosceles right triangle has a 90° right angle, and the other two acute angles are equal, both equal to 45°2) An ordinary isosceles triangle can only be solved if it tells at least one of the angles.

Hello, in an isosceles triangle, the two sides that are equal are called the waist of this triangle and the other side is called the bottom edge. The angle between the two waists is called the top angle, and the angle between the waist and the bottom is called the bottom angle, and the two bottom angles are equal.

It can be acute and right-angled, or it can be obtuse.

The three corners of an isosceles triangle are called acute angles.

An isosceles triangle is a triangle that has at least two equal sides, and the two equal sides are called the waist of this triangle. In an isosceles triangle, the two equal sides are called the waist of the triangle and the other side is called the bottom edge.

The properties are: 1. The two base angles of an isosceles triangle are equal (abbreviated as "equilateral to equal angles").

2. The bisector of the top angle of the isosceles triangle, the middle line on the bottom edge, and the height on the bottom edge coincide with each other (abbreviated as "isosceles triangle three lines in one").

3. The bisector of the two bottom angles of the isosceles triangle is equal (the midline on the two waists is equal, and the height on the two waists is equal).

4. The distance from the vertical bisector on the bottom edge of the isosceles triangle to the two waists is equal.

5. The angle between the height and the bottom edge of the waist of an isosceles triangle is equal to half of the top angle.

6. The sum of the distances from any point on the bottom edge of the isosceles triangle to the two waists is equal to the height of one waist (it needs to be proved by the equal area method).

7. The general isosceles triangle is an axisymmetric figure, with only one axis of symmetry, and the straight line where the bisector of the top angle is located is its axis of symmetry. But equilateral triangles (special isosceles triangles) have three axes of symmetry. The line where the bisector of each angle is located, the line where the three middle lines are located, and the line where the height is located are the symmetry axes of the equilateral triangle.

8. The square of the length of the waist in an isosceles triangle is equal to the square of the height on the base edge plus half the square of the base (Pythagorean theorem).

9. The relationship between the waist of an isosceles triangle and its height: the waist is greater than the height; The square of the waist is equal to the square of the height plus half the square of the bottom.

2, 3, 4, 2, 2, 2, 2.

Triangle. Detailed introduction: It is a closed figure composed of three line segments that are not on the same straight line in the same plane, which is connected sequentially by the 'head and tail', and has applications in mathematics and architecture.

Formula: s 1 2ah area = base height 2. where a is the base of the triangle and h is the height corresponding to the bottom) Note:

The three sides can be the base, which should be understood as half of the high product corresponding to the three sides is the area of the triangle. This is the basis for finding the length of a line segment using the area method.

Extended content: Common triangles are divided into ordinary triangles (all three sides are not equal) and Hongqin isosceles triangle (isosceles triangle with unequal waist and base.

An isosceles triangle with an equal waist to the base is an equilateral triangle.

There are right triangles divided by angles.

Acute triangles, obtuse triangles, etc., among which several acute triangles and obtuse triangles are collectively referred to as oblique triangles.

An isosceles triangle is a type of triangle that has equal sides. In an isosceles triangle, the three corners are not necessarily equal in size, therefore, isosceles triangles can be divided into three categories according to the size of the angles: acute triangles, right triangles, and obtuse triangles.

1.Acute triangle.

An acute triangle is a triangle in an isosceles triangle in which the angle between two equal sides is less than 90 degrees. In an acute triangle, all three angles are acute, i.e., less than 90 degrees. Acute triangles are characterized by having two equilateral shorter and a longer third.

In an acute triangle, the smaller the angle, the shorter the equilateral and the longer the third side.

2.Right-angled triangle.

A right triangle is a triangle in an isosceles triangle in which the angle between two equal sides is equal to 90 degrees. In a right triangle, one of the angles is a right angle, which is equal to 90 degrees, while the sum of the other two angles is equal to 90 degrees. A right-angled triangle is characterized by two equal sides and a third side being a right-angled side.

In a right triangle, two equisides can be converted into each other, and the length of the third side is determined by the Pythagorean theorem.

3.Obtuse triangles.

An obtuse triangle is a triangle in which the angle between the two equisides is greater than 90 degrees in an isosceles three-bend triangle. In an obtuse triangle, one of the angles is obtuse, i.e. greater than 90 degrees, while the sum of the other two angles is less than 90 degrees. An obtuse triangle is characterized by two equilateral lengths and a third side that is shorter.

In an obtuse triangle, the greater the angle, the longer the equilateral, and the shorter the third side.

In conclusion, isosceles triangles can be divided into three categories according to the size of the angles: acute triangles, right triangles, and obtuse triangles. Different types of isosceles triangle shapes have different characteristics and properties, and we can solve the problems associated with isosceles triangles according to these properties.