An obtuse angle or an acute angle.
angle
Antonym means the opposite. So the opposite of angle is a straight line.
a line ;)
a right angle is a right angle
Because a right angle is a right angle.
A right angle is an angle of 90 degrees.
A right angle is a angle with 90o
Assuming your question is what makes a right-angle, it is an angle of 90o .
It is: "angle a is not a right angle" or "angle a is greater than or less than a right angle".
because a right angle is right and a left angle is wrong
The right angle.
A right angle. i think it's a right angle