There are two commonly used units of measurement for angles. The more familiar unit of measurement is that of degrees. A circle is divided into 360 equal degrees, so that a right angle is 90°. For the time being, we'll only consider angles between 0° and 360°, but later, in the section on trigonometric functions, we'll consider angles greater than 360° angles.
See if you can find degree measurements of ? FAB, ? BAC, and ? DAE. Type your answers into the text boxes and then click Continue.
Hint
? FAB =
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