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Someone help me ?? With this ??? Explain to me

Someone help me ?? With this ??? Explain to me-example-1
User Tooraj Jam
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2 Answers

3 votes


111 + angle 1 = 180 degrees ( internal angles between parallel sides are supplementary)
So angle 1 = 180 - 111 = 69

Angle 1 = angle 2 because this is an isosceles trapezium.

Therefore angle 2 = 69 degrees (answer)
User Patrick Reck
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7.6k points
2 votes
∠3 is congruent with 111°, because when both (are seperately) added to either ∠1 or ∠2, they will = 180°

Meaning they are both supplementary angles with either ∠1, or ∠2, making them congruent

So 69 degrees should be your answer


hope this helps
User Jordanm
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