unknown5960
22.02.2021 •
Mathematics
2. Zland ZK are consecutive angles in a parallelogram, m -11)'. Find the measure of each angle. PLEASE HELP ITS DUE SOON!!
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Ответ:
(−4, 10)
Step-by-step explanation:
If M is the midpoint of AB, then ...
M = (A + B)/2
2M = A + B . . . . . . multiply by 2
2M -A = B . . . . . . . subtract A
2(-1, 8) -(2, 6) = (-2-2, 16-6) = (-4, 10)
It can be worthwhile to remember how to get the endpoint from the other end and the midpoint: B = 2M - A.