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2 years ago

I don't understand exactly how to solve this.

Mathematics

2 answers:

Marizza181 [45]2 years ago

4 0

Step-by-step explanation:

116° + y° = 180°. (sum of angles on a straight line = 180°)

Therefore y° = 64°.

The angles x°, y°, 72° and 125° are interior angles of a quadrilateral. (4-sided polygon)

In a quadrilateral, sum of interior angles = 360°.

So x° = 360° - y° - 72° - 125°

= 360° - 64° - 72° - 125°

= 99°.

Hence x° = 99°.

Volgvan2 years ago

4 0

Answer:

x = 99°

Step-by-step explanation:

First find y as its on straight line with 116°

y = 180° - 116° = 64°

Now, the sum of interior angles of a quadrilateral is 360°

x = 360° - (64° + 125° + 72°) = 99°

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3 years ago

I don't understand exactly how to solve this.​

I don't understand exactly how to solve this.