Line p is parallel to line q. Which proof explains why the sum of the interior angles of the triangle must be 180

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?