triangleABC में angleA+ angleB =70^(@) ...

`triangleABC` में `angleA+ angleB =70^(@)` और `angleB + angleC = 130^(@)` तो `angleA` का मान है

A

`20^(@)`

B

`50^(@)`

C

`110^(@)`

D

`30^(@)`

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The correct Answer is:

2

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