Question

in wow many ways can the triangle ABC be named?

Answer 1

Explanation:

Question:

In how many ways can the triangle ABC be named?

Answer:

• If it is not a right - angled triangle:

It can be name in three ways:

1. △ABC
2. △BCA
3. △CAB

You can name the triangle with any arrangement of vertices.

But if it is a right - angled triangle, we are abled to write it in only two types because the vertex at the centre represents the right angle in a right - angled triangle.

Let's assume a right - angled triangle with right - angled at vertex B.

• If it is a right - angled triangle:

1. △ABC
2. △CAB

The right - angled vertex should be written in the middle, otherwise it is not considered as a right - angled triangle and the name of the triangle will be wrong.