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nacgrading3p6d8pf
30.07.2019 •
Mathematics
Complete the paragraph proof given: < 1 and < 2 are supplementary and < 2 and < 3 are supplementary prove: < 1 is congruent to < 3 by the definition of supplementary angles, m< 1+m< 2=? m< 2+m< 3=? m< 1+m< 2=m< 2+m< 3 subtract m< 2 from each side, you get m< 1=? or < 1is congruent to?i do not understand this at all, all is greatly appreciated!
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Ответ:
Therefore if you have ∡1 and ∡2 that are supplementary, it means that that measure of ∡1 plus the measure of ∡2 is equal to 180°, or M∡1+M∡2=180°;
Similarly, the measure of ∡2 plus the measure of ∡3 is equal to 180°, or M∡2+M∡3=180°
Since they are equal to the same quantity (180°), they must be equal to each other: M∡1+M∡2=M∡2+M∡3
You can subtract the measure of ∡2 from both sides:
M∡1+M∡2-M∡2=M∡2+M∡3-M∡2
which brings to:
M∡1=M∡3
If two angles have the same measure they are said congruent, therefore ∡1 is congruent to ∡3.
Ответ:
510 and 238
Step-by-step explanation: