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I need help with this ^
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I need help with this ^

I need help with this ^-example-1
User Chongzixin
by
5.9k points

1 Answer

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Answer:

a=45º

Explanation:

The angles in a triangle added up= 180º

so, we can make the equation:

2a-20+2a-20+a-5=180

simplify

5a-45=180

5a=225

a=45

User Mathieu Rollet
by
6.0k points
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