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01-04-2021
Mathematics

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13. In the figure at the night, what is the
value of x?

13 In the figure at the night what is the value of x class=

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ppjj123 ppjj123

01-04-2021

These are supplementary angles meaning their measure adds to 180°

2x° + 70° = 180°

-70 -70

2x° = 110°
/2 /2

x = 55

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