The triangles are congruent by the sss congruence theorem.
which rigid transformation(s) can map abc onto dec?
reflection, then rotation
reflection, then translation
rotation, then translation
rotation, then dilation

How to determine whether two known pairs of points are on the same line.

How are sas and sss used to show that two triangles are congruent?

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 find the lower quartile, the median, and the upper quartile of the set? lower quartile: 19.5; median: 29.5; upper quartile: 42 lower quartile: 14; median: 27; upper quartile: 46 lower quartile: 18; median: 27; upper quartile: 38 lower quartile: 16; median: 29.5; upper quartile: 42