I have no clue I just need to answer some questions before I can ask my own again lol
Answer:
d
Step-by-step explanation:
The answer to your question is in this order :
-10, 0, 11, 20
False, a trapezoid and a square can have the same perimeter but not be confruent<span />
Answer:a^2 +b^2 =c^2.
Step-by-step explanation:
square of magnitude of first vector + square of magnitude of second vector + twice the dot product of the two vectors whose sum's magnitude is to be found.
