change the sign, but DONT switch the coordinates (:
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To rotate a figure 180 degrees clockwise, you can achieve this by first reflecting the figure over the y-axis and then reflecting it over the x-axis. This double reflection effectively rotates the figure 180 degrees clockwise around the origin.
The letter H has a rotational symmetry of order 2, meaning it looks the same after a 180-degree rotation.
180
180 degree meridian is the meridiam ospposite to the Prime Meridean or The Greenwich Meridian. It helps to find the location of a place. The 180 degree west and the 180 degree east are the same meridians. Whereas, the International Date Line or the IDL is an imaginary line that runs ALONG the 180 degree meridian. It bend slightly to avoid land. If a person travells eastward of it , he /she gains a day, but if a person travells westward of it he/she loses a day.
The letter U has rotational symmetry of order 1 because it looks the same after a 180-degree rotation.
A 120 degree angle is an obtuse angle. This means that the angle is between 90 and 180 degrees.