Answer:
Option C is correct
point D is coplanar
Step-by-step explanation:
Answer:
I believe the answer is ten.
Step-by-step explanation:
the line to CA is the same length as AE so you would double it to get ten for CD.
hope this helps!
An observation study is where nothing changes and you record what is seen. An experimental study you have a control group and a testable group.
The answer would be: .C. The groups in an experiment are chosen at random, but not in an observational study.
