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alexira [117]
3 years ago
10

I need help don’t know how to do

Mathematics
2 answers:
ivann1987 [24]3 years ago
5 0
Let x be the unknown angle.
We know that x+50=120 because the value of an exterior angle of a triangle is equal to the sum of the other 2 interior angles.

x+50 = 120
Subtract both sides by 50
x = 70

The value of the unknown angle is 70 degrees.

Have an awesome day! :)
Xelga [282]3 years ago
3 0
Hey there,
Angle RVU = 120 degrees
Angle TVU= 180 - 120 (Angles in a st line)
                 = 60 degrees
Angle TUV= 180 - 60 - 50 (Angle sum of triangle)
                 = 70 degrees

Hope this helps :)

~Top
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