amichael amichael

23-11-2020
Mathematics

contestada

PLZ HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

PLZ HELP ME class=

Respuesta :

jsoso102000 jsoso102000

23-11-2020

Answer:

External angle= 110º

Step-by-step explanation:

Sum of all angle of triangle = 180º

First you need to find t

t= 50 (see image below)

External angle ( the angle outside next to (t+20))

External angle + (t+20)= 180

External angle + 50+ 20= 180

External angle + 70 = 180

External angle= 110º

Ver imagen jsoso102000

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