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Vika [28.1K]
3 years ago
5

Please show work she’s a serious teacher

Mathematics
1 answer:
raketka [301]3 years ago
8 0

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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Sedbober [7]
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</span>

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anastassius [24]

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Step-by-step explanation:

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