Question

7. In the given figure, ∠1 = ∠2 then the measurements of ∠3 and ∠4
are:

Answer 1

Answer:

I have solved this question,

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Answer 2

Answer :      Let ∠1 & ∠2 be x and y.

58+x+y = 180 (Sum of all ∠s of Δ is 180)

58+2x = 180 (∠1 = ∠2 Given)

2x = 180 - 58

2x = 122

x = 122/2

x = 61 = y = 61

∠1 + ∠3 = 180              

61 + ∠3 = 180

∠3 = 180 - 61

∠3 = 119

∠2 + ∠4 = 180                  

61 + ∠4 = 180

∠4 = 180 - 61

∠4 = 119

Therefore ∠3 = 119 and ∠4 = 119

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