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О A 13x + 13 7x+7 60° с B
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О
A
13x + 13
7x+7
60°
с
B

О A 13x + 13 7x+7 60° с B-example-1
User Sarela
by
6.9k points

1 Answer

4 votes

Answer:

x = 9

Explanation:

(7x + 7) + 60 = 13x + 13 (exterior angle)

7x + 67 = 13x + 13

6x = 54

x = 9

User Cquptzzq
by
8.1k points
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