From the statement select the related given statement. if two parallel planes are cut by a third plane, the lines of intersection are parallel. plane r is parallel to plane s; plane t cuts planes r and s. △abc with ∠1 = ∠2. point b is between points a and c line l; point p not on l. △abc with midpoints m and n.

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

Ray ce is the angle bisector of zacd, which statement about the figure must be true? mzecd-mzecb mzace « 4mzacd zace - zdcb zecd zacd save and exit

Use δjkl and δmpn to determine whether don's claim is true or false. which of the following should don use to prove the triangles are similar? sss sas aas aa