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Triangle angle Sum and Exterior angle Theorems with Algebra

Last updated over 1 year ago

12 questions

Answer from I to 12.  Wait for instructions on problems 13-26

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Question 1

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Question 2

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Question 3

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Question 4

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x is exterior and is 180-21-34

x is exterior and is 21+34=55

x is interior and it is 180-21-34

x is 180

Question 5

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Question 6

6.

Which 2 equations are correct to solve for x?

2x=94

2x+60=94

2x+60+86=180

x=180

Question 7

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Question 8

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Question 9

9.

what is the correct equation?

2x+5=90

3x+3=90   so x is 29

x+3=90   so x is 87

Question 10

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Question 11

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Question 12

12.

Which one is the right equation and solution

6x+62=180  x is 19.7

6x+18=180   x is 23

5x+62=180  x is 23.6