vaaeam
vaaeam
27-01-2021
Mathematics
contestada
I don’t know how to find angle A
Respuesta :
kambehannah
kambehannah
27-01-2021
angle a = 60
given that all angles of a triangle added together must equal 180
x = -20
-20+80=60
do it again for the other angle measurement
60+60+40=180
therefore, angle A is 60°
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