What is the sum of the measures of the interior angles of this polygon?

1. 270
2. 450
3. 540
4. 900

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.