queenb1416
03.05.2020 •
Mathematics
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A)38
B)62
C)80
D)100
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Ответ:
Step-by-step explanation:
∠5 +∠6 +∠7 = 180 {straight line angle}
38 + 62 + ∠7 = 180
100 +∠7 = 180
∠7 = 180 - 100
∠7 = 80°
l // m
∠3 = ∠7 {Alternate interior angles are congruent}
∠3 = 80°.
Ответ:
indeed :)
Step-by-step explanation:
stay safe out there! happy holidays! blessings, lots of love, nm <3