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Digiron [165]
3 years ago
7

I need help with the test

Mathematics
1 answer:
Phantasy [73]3 years ago
8 0

Answer:

129°

Step-by-step explanation:

5x + 4° + 2x + 1° = 180° {being linear pair }

7x + 5° = 180°

7x = 180° - 5°

7x = 175°

x = 175° / 7

x = 25°

here the obtuse angle is 5x + 4 so

5 * 25 ° + 4°

= 129°

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