Contents
How do you classify a triangle by its sides and angles?
Equilateral triangle: A triangle with three sides of equal length. Isosceles triangle: A triangle with at least two sides of equal length. Line of symmetry: A line through a figure that creates two halves that match exactly. Obtuse angle: An angle with a measure greater than 90 degrees but less than 180 degrees.
How do you identify a scalene triangle?
We can find the scalene triangle’s area when the length of its two sides and the included angle are given.
- When two sides b and c and included angle A is known, the area of the triangle is, Area = (1/2) bc × sin A.
- When sides a and c and included angle B is known, the area of the triangle is, Area = (1/2) ac × sin B.
What numbers make a obtuse triangle?
An obtuse triangle (or obtuse-angled triangle) is a triangle with one obtuse angle (greater than 90°) and two acute angles. Since a triangle’s angles must sum to 180° in Euclidean geometry, no Euclidean triangle can have more than one obtuse angle.
Which is the correct classification of a triangle?
Classification by sides is simple, if all sides are equal, triangle will be equilateral, if any two sides are equal triangle will be Isosceles otherwise it will be Scalene.
How is project management represented on a triangle?
Project management is very often represented on a triangle. A successful project manager needs to keep a balance between the triple constraints so that the quality of the project or outcome is not compromised.
Which is safer subtracting or adding to triangle?
In one of the comments, @Ryan pointed out that adding two sides could result in overflow. Therefore, subtracting is safer.
When to use an array instead of a triangle?
There’s a lot of redundancy due to symmetry, since a, b, and c are interchangeable. Whenever you have a group of variables that should be treated the same way as each other, you should consider using an array instead. Once you sort the sides by length, the problem becomes easier.