According to Pythagoras, a triangle can be classified as obtuse-angled, acute-angled, or right-angled based on the relationship between the lengths of its sides. A right-angled triangle has one angle that measures 90 degrees, while an acute-angled triangle has all angles measuring less than 90 degrees. An obtuse-angled triangle has one angle that measures more than 90 degrees. The classification of a triangle as obtuse-angled, acute-angled, or right-angled depends on the measures of its angles. **

Centrifugal force is considered a fictitious force because it only appears to act on objects in a rotating reference frame, such as a spinning carousel or a turning car. In reality, the object is moving in a straight line, but it appears to be pushed away from the center of rotation due to inertia. On the other hand, centripetal force is a real force that acts towards the center of rotation, keeping an object moving in a circular path. This force is necessary to maintain the object's curved motion and prevent it from moving in a straight line. **

Yes, someone can help you figure out whether a triangle is acute-angled, right-angled, or obtuse-angled. To determine the type of triangle, you can measure the angles of the triangle using a protractor or a geometry tool. An acute-angled triangle has all angles less than 90 degrees, a right-angled triangle has one angle equal to 90 degrees, and an obtuse-angled triangle has one angle greater than 90 degrees. If you are having trouble determining the type of triangle, you can seek assistance from a teacher, tutor, or someone knowledgeable in geometry. **

You can buy a 2L oxygen cylinder from a hardware store that specializes in medical supplies or welding equipment. These types of stores often carry a variety of gas cylinders, including oxygen, for both medical and industrial use. It's important to check with the store beforehand to ensure they have the specific size and type of oxygen cylinder you need. Additionally, you may need to provide documentation or a prescription for purchasing medical-grade oxygen. **

An object is said to be angled when it is positioned or placed in such a way that it is not parallel or perpendicular to a reference point or surface. Angling can occur when an object is tilted, slanted, or inclined in relation to its surroundings. This can happen intentionally for a specific purpose, such as adjusting the direction of light or achieving a desired aesthetic effect, or it can occur naturally due to the forces acting upon the object. **

Centrifugal force is considered a fictitious force because it only appears to act on objects in a rotating reference frame, such as a spinning carousel or a turning car. In reality, the object is moving in a straight line, but it appears to be pushed away from the center due to the rotation. On the other hand, centripetal force is a real force that acts towards the center of rotation, keeping an object moving in a circular path. This force is necessary to maintain the object's curved motion and prevent it from moving in a straight line. **

Yes, these are real Air Force personnel. The uniforms, insignias, and equipment they are wearing are consistent with those used by the Air Force. Additionally, their posture and demeanor suggest they are trained military personnel. **

Yes, those are real Air Force personnel. The individuals you see are members of the Air Force, identifiable by their uniforms and insignia. They have undergone training and are serving in the Air Force in various capacities. **