27-01-2021
Mathematics

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I don’t know how to find angle A

I dont know how to find angle A class=

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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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