A skinny triangle is a triangle with three sides of significantly different lengths. This type of triangle is often referred to as a scalene triangle, which is derived from the Greek word for “uneven”.
A scalene triangle can be either obtuse (one angle greater than 90 degrees) or acute (all angles less than 90 degrees). It is also possible for one of the sides of a scalene triangle to be 0, forming a degenerate triangle.
A scalene triangle is the opposite of an equilateral triangle, which has three equal sides and three equal angles. Similarly, an isosceles triangle has two equal sides and two equal angles. While it is possible for the sides of scalene triangle to be of equal length, it is not necessarily so, as this would make it an isosceles.
In addition to being classed as either obtuse or acute, the angles of a scalene triangle can also be designated as right or oblique. A right triangle is a triangle that has one right angle and two acute angles, whereas an oblique triangle consists of three acute angles.
The most common type of scalene triangle is an oblique triangle, which is one of the most commonly used shapes in architecture and design.
In summary, a skinny triangle is another name for a scalene triangle – a triangle with three unequal sides. They can be either obtuse or acute and either right or oblique.
What are the 4 types of triangle?
The four types of triangles based on their angles and side lengths are:
1. Equilateral Triangle: All angles of this triangle are equal and all sides have the same length.
2. Isosceles Triangle: This triangle has two sides of equal length and two angles that are equal.
3. Scalene Triangle: All sides of this triangle have different lengths and all three angles are different.
4. Right Triangle: This triangle has one right angle (90 degrees) and two other angles that are less than 90 degrees.
What are all triangle names?
There are a variety of names for different types of triangles, depending on the lengths and angles of the sides. The three main types of triangles are:
1. Equilateral triangles – All sides are of equal length and all three angles are also equal (60°).
2. Isosceles triangles – Two sides are of equal length, with the third side being different, and two angles being equal (the two angles opposite of the two equal sides).
3. Scalene triangles – All three sides are of different lengths and all three angles are also of different sizes.
In addition to those three main categories of triangles, there are several specialized types of triangles with specific names, based on their characteristics:
1. Right triangle – One 90° angle.
2. Obtuse triangle – One angle that is greater than 90°.
3. Acute triangle – All three angles less than 90°.
4. Right Isosceles triangle – Two sides of equal length and the remaining side shorter; two angles of equal size and the remaining angle 90°.
5. Equiangular triangle – All three angles are equal (not to be confused with Equilateral triangles, in this instance, all three sides are also of equal length).
6. Obtuse Isosceles triangle – Two equal sides and the remaining side longer; two equal angles and the remaining angle greater than 90°.
7. Acute Isosceles triangle – Two equal sides and the remaining side shorter; two equal angles and the remaining angle less than 90°.
8. Right Scalene triangle – All three sides of different lengths and one angle 90°.
9. Obtuse Scalene triangle – All three sides of different lengths and one angle greater than 90°.
10. Acute Scalene triangle – All three sides of different lengths and all three angles less than 90°.
What does an scalene triangle look like?
An scalene triangle is a triangle that has all three sides with different lengths. It does not have two equal length sides and an equal angle at each vertex. This type of triangle is not equilateral like the other two types, which means that none of the angles measure the same.
The sides also cannot be divided into two exact halves. Generally, the sides of a scalene triangle also cannot form two or three perfect squares, unlike the other triangle types. Scalene triangles can have angles of any size, and their angles can be greater than or less than 90 degrees.
It can look like many different shapes, large and small, depending on the lengths of the sides.
How do you identify a scalene triangle?
A scalene triangle is a type of triangle in which all three of its sides have different lengths. Identifying a scalene triangle is relatively straightforward; if all three sides of the triangle have different lengths, then it is classified as scalene.
This can be determined by measuring the three sides of the triangle with a ruler or measuring tape, or by simply observing it. A scalene triangle can also be identified by its angles; the three angles of a scalene triangle will always be different from each other, whereas the angles of an isosceles or equilateral triangle are congruent.
It is also important to note that a scalene triangle is defined by having no two sides that are equal in length, regardless of any angles or other factors.
Is an isosceles triangle always a 45 45 90?
No, an isosceles triangle is not always a 45 45 90 triangle. A 45 45 90 triangle is a specific type of isosceles triangle in which the two sides that form the triangle’s base are equal in length, and the corner opposite of them forms a right angle.
All isosceles triangles have two sides that are equal in length, however, the angle opposite of those two equal sides can vary. This means, an isosceles triangle can be obtuse, acute, or right angles.
An isosceles triangle can also be a 45 45 90 triangle, but this isn’t always the case.