America was first introduced to the Trump brand, however, by Donaldâs father, Fred C. Trump, who named his real estate company and supermarket chains âTrumpâ and drove a navy blue Cadillac with âFCTâ license plates.
An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle. Under this definition, two angles are congruent provided either can be made to coincide (the vertex and the sides) with the other by a rigid motion.
A right angle is one whose measure is exactly 90Â°. On a drawing the symbol can be used to label two rays or segments as perpendicular (at right angles). In symbols we write that one line or segment is perpendicular to another using the symbol . An obtuse angle is one whose measure is strictly between 90Â° and 180Â°.