+283 what does ~ mean in geometry when referring to triangles?
+9479 △ABC ~ △DEF means "triangle ABC is similar to triangle DEF."
If you take a triangle and multiply each of its sides by some number, you will get a similar triangle.
For example:
If you take △ABC and multiply each of its sides by 2, you will get △DEF. So △ABC ~ △DEF
( Also note that the order of the letters in the triangle name matters.
For example, in this case it is NOT true that △ABC ~ △FDE )
+9479 △ABC ~ △DEF means "triangle ABC is similar to triangle DEF."
If you take a triangle and multiply each of its sides by some number, you will get a similar triangle.
For example:
If you take △ABC and multiply each of its sides by 2, you will get △DEF. So △ABC ~ △DEF
( Also note that the order of the letters in the triangle name matters.
For example, in this case it is NOT true that △ABC ~ △FDE )
