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Solve for x (interior and exterior angles)​

Solve for x (interior and exterior angles)​-example-1

1 Answer

3 votes

Answer:

-11

Explanation:

*The sum of all three angles of a triangle is 180*

So,

80+60

140 + (x + 51) = 180

-140 -140

x + 51 = 40

- 51 - 51

x = - 11

HOPE this helped

User Jacobra
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