Theorem: the segment joining the midpoints of two sides of a triangle is parallel to the third side and half its length.
a two-column proof of the theorem is shown, but the proof is incomplete.

which of the following completes the proof?

a. by the addition property
b. by the distance formula
c. by construction
d. given

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3