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kondor19780726 [428]
3 years ago
5

HELP ASAP PLS PLS PLS !

Mathematics
1 answer:
Maslowich3 years ago
6 0

Answer:

(b) the unknown angle is 80°

Step-by-step explanation:

The unkown angle is:

[2(x-10)]°

Substituting "x" by 50 (part a)

[2(50-10)]°=[2(40)]°=80°

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