Question

If the difference between two supplementary angles is 80⁰, then the smaller of the two angles is *

130⁰

120⁰

60⁰

50⁰

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Answer 1

Answer:

Let, the smaller angle be x

So, the greater angle be 180 - x

According to question

(180 - x) - x = 80

180 - x - x = 80

180 - 2x = 80

180 - 80 = 2x

100 = 2x

x = 100/2

x = 50 degree

So, the smaller angle is 50 degree.

Option d) 50 degree is correct answer.

Answer 2

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