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30.11.2020 •
Mathematics
Select the correct answer from each drop-down menu. In the figure, points A, B, C, and D reflect across blank to coincide with points G, J, I, and H, respectively. ∠GHI is blank °. If G is reflected across the x-axis to create point K, the coordinates of K are .
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Ответ:
m∠1 = 81
m∠2 = 99
Step-by-step explanation:
The angles are supplemaentary and therefor sum to 180
3x + (x + 72) = 180
4x + 72 = 180
4x = 108
x = 27
m∠1 = 3x
m∠1 = 27(3)
m∠1 = 81
m∠2 = x + 72
m∠2 = 27 + 72
m∠2 = 99