3 years ago

(9y+7) Find the value of y and the measures of all angles. (2y+98)°

Mathematics

1 answer:

Ratling [72]3 years ago

7 0

Answer:

Both obtuse angles - 124°

Both acute angles - 56°

Step-by-step explanation:

The two given obtuse angles are equal. Therefore you get an equation

$9y+7 = 2y+98\\7y=91\\y=13$

So the obtuse sizes of the two given angles are $13*9+7=2*13+98=124$ °

And the sizes of the acute angles are $180-124=56$ °

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