The term "45 degrees" often refers to an angle that is half of a right angle. In geometry, a right angle measures 90 degrees, so 45 degrees is significant in various applications, including construction and design. It is commonly used in creating triangles, particularly in isosceles triangles, where two angles are equal. In everyday life, a 45-degree angle can be observed in various contexts, such as the slope of a roof or the position of a ramp. It is also a key concept in trigonometry, where it relates to the sine and cosine functions, both of which equal approximately 0.707 at this angle.