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20-01-2021
Mathematics

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Find the value of x.

Find the value of x class=

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20-01-2021

Answer:

x = 109 degrees

Step-by-step explanation:

Triangle = 180 degrees

81 + 28 = 109

180 - 109 = 71

Uknown angle = 71 degrees

Straight line = 180 degrees

so...

180 - 71 = x

x = 109

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