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19-02-2022
Mathematics

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Unknown angle problems (with algebra)

Unknown angle problems with algebra class=

Respuesta :

angle46089 angle46089

19-02-2022

Answer:

x = 20

Step-by-step explanation:

100 + 3x + x = 180

100 + 4x = 180

- 100 -100

4x = 80

÷4 ÷4

x = 20

360° is a full circle, and since this is half you set the numbers equal to 180°

I hope this helps!

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