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  • 13-01-2021
  • Mathematics
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Please show work she’s a serious teacher

Please show work shes a serious teacher class=

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Аноним Аноним
  • 13-01-2021

1.

The number of degrees in a quadrilateral added up is 360.

The number of degrees in the other angles are 108, 72, and 81.

108+72+81 = 261

To find the last angle, you subtract the number of degrees of the other angles from 360.

360-261 = 99

The measure of unknown angle is 99.

2.

This problem is very similar.

Add up the number of degrees in the other three angles.

95+121+59=275

And you subtract 275 from 360.

360-275 = 85

The measure of the missing angle is 85.

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