Question

Angle MNO is formed by segments MN and NO on the coordinate grid below:

Angle MNO is rotated 180 degrees counterclockwise about the origin to form angle M′N′O′. Which statement shows the measure of angle M′N′O′?

m∠M′N′O′ = 90 degrees
m∠M′N′O′ = 180 degrees
m∠M′N′O′ = 2 × m∠MNO
m∠M′N′O′ = m∠MNO

Answer 1

angle M'N'O' = angle MNO

Answer 2

Answer: D

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