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Annette [7]
3 years ago
11

I think the answer is either 40° or 60°??

Mathematics
2 answers:
Bumek [7]3 years ago
8 0

Answer:

60

Step-by-step explanation:

The sum of the interior angles of a triangle is 180°

80+40=120

180-120=60

if it is unclear or you need more explanation, ask freely.

anastassius [24]3 years ago
3 0

Answer:

60°

Step-by-step explanation:

According to Angle Sum Property of a triangle , sum of the angles of 3 sides of the triangle is always 180°.

Here the angles given are 80° & 40°. Let the 3rd angle be x. So using the Angle Sum Property here ,

40° + 80° + x° = 180°

=> 120° + x° = 180°

=> x = 180° - 120° = 60°

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