Answer. Let the measure of the angle is x∘. Then its complement is (90−x)∘. Now, the angle is equal to four times its complement. x =4(90−x) x =3600 −4x. x +4x = 3600. 5x = 360. x = 5360. A part of a circle is called an arc and an arc is named according to its angle. Arcs are divided into minor arcs (0° < v < 180°), major arcs (180° < v < 360°) and semicircles (v = 180°). The length of an arc, l, is determined by plugging the degree measure of the Arc, v, and the circumference of the whole circle, C, into the following formula: The "angle" of the rotation is how far around the circles the points travel. A rotation in three-dimensional space is a rigid motion that keeps the points on one line fixed, called the "axis" of the rotation, with the rest of the points moving some constant angle around circles centered on and perpendicular to the axis. Dec 06, 2012 · To determine the relationships between the values of sine,cosine and tangent of angles in quadrants II, III, and IV with their respective values of the corresponding angle in quadrant I,follow the steps below - Determine the quadrant where the angles is located - Determine the signs of the values of sine,cosine and tangent.