paulamarentes20 paulamarentes20

15-01-2020
Mathematics

contestada

Please help me idk this??

Please help me idk this class=

Respuesta :

cjtrevs010 cjtrevs010

11-02-2021

Answer:

190 degrees

Step-by-step explanation:

The sum of the 2 angles must be 360 degrees. Because angle A = 170 degrees, and we know that angle A + angle B = 360, we get

170 + B = 360

170 - 170 + B = 360 - 170

B = 190 degrees

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