lsims99
lsims99 lsims99
  • 21-09-2020
  • Mathematics
contestada

help needed i have 14 questions anybody wanna help help me with ALL

help needed i have 14 questions anybody wanna help help me with ALL class=

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tomson1975
tomson1975 tomson1975
  • 22-09-2020

Greetings from Brasil...

Here we have supplementary angles, that is, the sum of both results in 180. Therefore,

A + B = 180 ⇔ ∠1 + ∠2 = 180

∠1 + ∠2 = 180     by defining supplementary angles

143 + ∠2 = 180

∠2 = 180 - 143

∠2 = 37°

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