Point D is the center of the inscribed circle of triangle ABC. Which step can you use to draw the inscribed circle of triangle ABC?
A. Draw arcs of equal lengths intersecting lines AB, BC, and AC in two points each.
B. Draw the perpendicular bisectors of lines AB, BC, and AC that pass through point D.
C. Label a point E on line AB and draw a line joining E with D.
D. Draw a line through point D that is perpendicular to one of the sides AB, BC, or AC
E. Draw one arc each on lines AB and BC, and find their point of intersection,

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?