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25°
y
x 120°
y=[? ]º

User Calum You
by
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1 Answer

5 votes

Answer:9514 1404 393

Answer:

y = 95°

x = 60°

Explanation:

The applicable theorem is the one that says the exterior angle (120°) is the sum of the remote interior angles:

120° = 25° +y

95° = y . . . . . . . . . . subtract 25° from both sides

_____

If you like, you can get there by calculating x (or not):

x = 180° -120°

y = 180° -25° -x = 180° -25° -(180° -120°)

y = 120° -25° . . . . . simplify — notice we didn't actually have to compute x

Explanation:

User QurakNerd
by
3.2k points