corrado4 corrado4

04-07-2022
Mathematics

contestada

20%
120°
y=[ ? ]°
Enter

20 120 y Enter class=

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Аноним Аноним

04-07-2022

Step-by-step explanation:

Solution,

here ,

20° + 120° + x = 180°

reason : The sum of interior angle of triangle is 180°.....

140°+ x = 180°

x = 180° - 140°

x = 40°

Now..

x + y = 180° ....

reason : Supplementary angle...

40° + y = 180°

y = 180° - 40°

y = 140°

[tex]...[/tex]

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