What is the mean absolute deviation of the data set?

12, 15, 7, 4, 9, 10, 9, 6

1.5

2.5

4.3

9.0

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.

How do you write a paragraph proof to prove that the corresponding angles shown are congruent

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de