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Ad libitum [116K]
3 years ago
5

Find the value of the unknown angle. 25 30 43 80

Mathematics
1 answer:
KengaRu [80]3 years ago
5 0

Answer:

It is 30°

Step-by-step explanation:

Putting the formula exterior angle of a triangle = the sum of 2 interior angles of a triangle.

let the angle be x;

Therefore,

80°+x = 110°

x = ( 110 - 80 )°

x = 30°

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