Question

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Answer 1

Answer:

36° is the answer

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Answer 2

Supplementary angles add upto 180°.

Let the unknown angle be x.

Since its supplement is 1/5th of it, so it is 1/5x.

x+1/5x=180° (LCM of 1 and 5 is 5)

(5x+x)/5=180°

6x/5=180°

6x=180°(5)

6x=900

x=900/6

x=150°

Therefore, x=150°

1/5x=30°