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Anni [7]
3 years ago
10

PLEEAASESEEE HEELLPPPP

Mathematics
1 answer:
german3 years ago
3 0

Answer:

<em><u>9</u></em>

Step-by-step explanation:

= x + 16° + x + 3° =5x - 8°[ Sum of two interior angles is equal to the exterior angle]

or, 2x + 19 = 5x - 8

or, 19 + 8 = 5x - 2x

or, 27 = 3x

or, x = 27/3

☆ x= 9

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