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(Urgent) Worth 10 points 7.3

(Urgent) Worth 10 points 7.3-example-1

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Explanation:

A straight line adds up to 180°

m+3m=180°

4m=180°

m=45°

3m=45°

angle CBD=3(45)

=135°

User Joelius
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The answer is 135 hope that helps!
User Kajojeq
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