Question

please try again and again ok​

Answer 1

Answer:

let the unknown angle be x

by the triangular sum property we have

X+ 70°+60°= 180 °

x + 130 = 180°

so x =50°

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Answer 2

Step-by-step explanation:

let third angle be x

70+60+x=180°

130+x= 180°

x=180-130

x=50°

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