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Tpy6a [65]
3 years ago
5

Find the missing angle!

Mathematics
2 answers:
viva [34]3 years ago
7 0

Answer:

? = 70°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

120° is an exterior angle of the triangle, then

? + 50° = 120° ( subtract 50° from both sides )

? = 70°

Airida [17]3 years ago
3 0

Answer:

missing angle = 70 degrees

Step-by-step explanation:

180 -120 =60, because supplemenatery angles add up to 180 degrees.

sum of all angles of a triangle = 180. so 180-60-50=70 degrees

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