Question

If 2 Angeles of a triangle is 70° and 80° find the 3rd angel
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Answer 1

Answer:

Let A be 70°

Let B be 80°

We know that Triangle has 180°

So,<A+<B+<C=180°

70°+80°+<C=180°

150°+<C=180°

<C=30°

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Answer 2

Answer:

70+80+C=180

150+C=180

C=180-150

C=30

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