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3 years ago

A. Solve for the value of x in the given triangle.

Mathematics

1 answer:

slavikrds [6]3 years ago

3 0

Answer:

Step-by-step explanation:

$5x + 5 + 11x - 1 + 3x + 5 = 180 \\\ 19x + 9 = 180 \\\ 19x = 180 - 9 \\\ 19x = 171 \\\ x = \frac{171}{19} \\\\\ x = 9$

11 × 9 - 1 = 98°

The obtuse angle is the one have an angle measuring between 90° and 180°.

I hope I've helped you.

I think I'm getting better my English ^^

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