nate7742
31.08.2020 •
Mathematics
6. GEOMETRY Mikhail drew parallelogram HIJK with
coordinates H(1,0), 1(4,0), J(2, 1), and K-1, 1) on a
coordinate plane. Find the coordinates of the image after
Mikhail rotated it clockwise 180° about the origin.
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Ответ:
sum of the angles of a polygon is (n-2)*180
each angle is (n-2)*180/n
140 = (n-2)*180/n
140n = 180n - 360
-40n = -360
n = 9