Typical questions about congruent triangles isosceles triangles equilateral triangles including answ

It is right that an equilateral triangle is a special isosceles triangle because an equilateral triangle is that all three sides are equal, and an isosceles triangle is that both sides are equal, so an equilateral triangle must be an isosceles triangle. An equilateral triangle is a triangle in which all three sides are equal; An isosceles triangle is a triangle with two equal sides, so an equilateral triangle is a special isosceles triangle, but an isosceles triangle is not a special equilateral triangle.

An equilateral triangle is an acute triangle with equal internal angles and both are 60°. The centerline, high line, and angular bisector on each side of an equilateral triangle coincide with each other. An equilateral triangle is an axisymmetric figure that has three axes of symmetry, and the axis of symmetry is the line where the midline, high line, or bisector of the angle on each edge are located.

The center of gravity, inner, outer center, and vertical center of an equilateral triangle coincide at one point, which is called the center of the equilateral triangle. The sum of the distances from any point to three sides in an equilateral triangle is a fixed value. (equal to its height).

Wrong. An equilateral triangle is a special isosceles triangle, whereas an isosceles triangle is not a special equilateral triangle. A triangle with equal sides and equal bottom angles is called an isosceles triangle (also known as an equilateral triangle), and two sides are equal to each other and are called the waist of the triangle.

A triangle with three equal sides is called an equilateral triangle, also known as a regular triangle, and an equilateral triangle is a special isosceles triangle.

Note: If all three sides of a triangle are equal, the triangle is said to be an equilateral triangle, and the triangle is generally not called an isosceles triangle).

1. The inner angles of equilateral triangles are all equal, and they are all 60 degrees.

2. The middle line, the high line and the angle bisector of each corner on each side of the equilateral triangle coincide with each other.

3. The equilateral triangle is an axisymmetric figure, it has three axes of symmetry, and the symmetry axis is the straight line where the middle line, the high line or the bisector line of the opposite angle is located on each side.

4. The two base angles of an isosceles triangle are equal (referred to as "equilateral equilateral angles").

Mistake. It should be: an equilateral triangle is a special isosceles triangle.

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Yours is the driving force for us to persevere.

Right. Because the equilateral triangle is Wang Liang, all three sides are equal, and the isosceles triangle is the two sides are equal, so the equilateral triangle is a special isosceles triangle. An equilateral triangle has three equal internal angles, all of which are 60°, and it is a type of acute triangle.

1) An equilateral triangle is an acute triangle, and the inner angles of the equilateral triangle are all equal, and they are all 60°.

2) The centerline, high line, and angle bisector on each side of an equilateral triangle coincide with each other. 3) An equilateral triangle is a symmetrical figure with three axes of symmetry, and the axis of symmetry is the straight line on each side where the middle line, high line, or bisector of the angle are located.

4) The center of gravity, the inner center, the outer center, and the vertical center of the equilateral triangle are overlapped at one point, which is called the center of the equilateral triangle. (Four Hearts in One).

5) The sum of the distances from any point to three sides in an equilateral triangle is a fixed value. (equal to its height).

Summary. Equilateral triangles, isosceles triangles, and unequal triangles are three different types of triangles. - An equilateral triangle is a triangle with three sides that are exactly equal in length.

An isosceles triangle is a triangle with two sides of equal length. - An unequal triangle is a triangle in which all three sides are not equal in length. The inclusion relationship between them can be described as:

An equilateral triangle contains an isosceles triangle because all three sides of an equilateral triangle are of equal length, and two of the sides are of equal length. - An isosceles triangle may be an unequal triangle because the two sides of an isosceles triangle are of equal length, but the third side can be of different lengths, so it may be formed.

Inclusion of equilateral triangles, isosceles triangles, and unequal triangles.

Equilateral triangles, isosceles triangles, and unequal triangles are three different types of triangles. - An equilateral triangle is a triangle with three sides that are exactly equal in length. An isosceles triangle is a triangle with two sides of equal length.

- An unequal triangle is a triangle in which all three sides are not equal in length. The inclusion relationship between them can be described as follows:- An equilateral triangle contains an isosceles triangle because all three sides of an equilateral triangle are of equal length, and if the two sides are of equal length, an isosceles triangle is formed.

An isosceles triangle may be an unequal triangle because the two sides of an isosceles triangle are not of equal length, but the length of the third side can be different, so it may be formed.

Can you draw a picture for me?

I don't have a ruler with me, so I may not be able to draw well<>

That's how it is. Good. Thank you.

No very standard circles.

The outer side is a large unequal triangle.

Equilateral triangles can contain isosceles triangles.

But an isosceles triangle must not be an equilateral triangle.

You write in the circle I draw.