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mmm5398
12.10.2019 •
Mathematics
Find the value of x.
pls ! tysm
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Ответ:
x = 30.
Step-by-step explanation:
The angle next to the 60 degree angle = 180 - 60 = 120 degrees (adjacent angles are supplementary).
Let the angle just above 3x be y. The sum of 3x and y = 120 degrees (as opposite angles of a parallelogram are equal).
We have the following equations.
3x + y = 120(1)
2x + 90 + y = 180
2x + y = 90(2)
Subtracting, (1) - (2):
x = 30.
Ответ:
1/15 (60-s)>with line under 3
Graph : circle closed facing left from 15
Step-by-step explanation: