To get the most from a direct box, your mixing board must have balanced mic and/or line inputs! (Note that some mixers offer both XLR and 1/4 balanced inputs -- check your manual.) Use a direct box if you are experiencing hum, buzz, or radio interference, or if your instrument's cable is longer than 20 feet.
When a transversal (any line that passes through two parallel lines) cuts two parallel lines then the angles that correspond to the similar positions (angles in the matching corners) with respect to either of the parallel lines and lie on the same side of the transversal are called the Corresponding angles.
Supplementary angles: Two angles who measures have a sum of 180. and KMH are complementary because they add up to 180 degrees, which is a straight line. is a straight line. Although not pictured, supplementary angles do not need to be adjacent. Vertical angles: Two angles whose sides are opposite rays. The vertical (opposite) angles are congruent. The example below shows two sets of vertical angles, 1 and 3, 2 and 4.