From the graph we can see that the horiz. directrix is 1 unit down from the vertex, which in turn is (1,4). The focus is located the same distance (1) upward from the vertex, that is, at (1, 5).
Answer:
three angles of a polygon are each 105.5,the sum of the angles in the polygon is 2520. find each of the other angles if they are equal to each other. For a polygon with n sides and n angles, the sum of the measures of all the interior angles equals (n-2)180 degrees. 16-3=13
Answer:
Option C
Step-by-step explanation:
same logic as in 2D problems. if C wasn't true, then the two planes couldn't be parallel
