PLEASE ANSWER THEN I'LL MARK U BRAINLY
1. When measuring an angle on a protractor, where must the vertex be placed?
2. What is a statement that is accepted to be true without having to formally prove it?
3. What is the measurement of a straight angle?​

Respuesta :

A1. Place the midpoint of the protractor on the VERTEX of the angle.

A2. An axiom or postulate is a statement that is accepted without proof.

A3. A straight angle is an angle with measure 180 degrees. It is called a straight angle because if there were an angle that had measure 180 degrees, the three points that form the angle would be in a straight line.