2 right angles
There are right angles, acute angles, obtuse angles, and straight angles.
It can have angles which are acute, right, obtuse or reflex. Not straight angles, though.
What is a 'Straight Angle'???? Perpendicular lines meet at 90 degrees ( right- angles).
The parallel postulate: "That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles."
"How are straight angles different from right angles?" Is this a statement?
No, there are different kinds of angles, such as acute, reflex, straight and obtuse. A right angle is 90°.
There are several types of angles that are used in geometry. These angles include obtuse, acute, straight, and right angles.
2 right angles
A straight angle is an angle that is 180 degrees exactly (a straight line). A right angle is 90 degrees (like the corners of a square.)
There are right angles, acute angles, obtuse angles, and straight angles.
TWO.
right angles and straight angles
acute angle obtuse angle right angle reflex angle a straight angle
A straight line has no right angles. But a square is actually a closed line with four right angles.
You can use straight angles to make sure countertops, or walls are straight and in a right formation.
It can have angles which are acute, right, obtuse or reflex. Not straight angles, though.