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The statement, "right angles measure 90 degrees," is an example of:
A postulate
A definition
A theorem
A conjecture


Sagot :

That's simply a definition ... "Right" is the name we give to an angle of 90 degrees.
It's no more mysterious than "Yards measure 36 inches.".

Answer:

A definition

Explanation:

First, let's start by defining the four given terms:

1- A postulate: This is a naturally true statements. No proofs are needed.

2- A definition: This is what we use to describe or define something.

3- A conjecture: This is a statement that has not yet been proven as true.

4- A theorem: When a conjecture is proved to be true, it becomes a theorem.

For the given statement, we can note that we are describing a right angle or defining what a right angle is.

This means that the correct answer would be: definition

Hope this helps :)