Respuesta :

Answer:

So measure of angle A is 50degrees

Step-by-step explanation:

As we know that A+B+C=180(supplementary angles)

A+100+30=180

A+130=180

A=180-130

A=50degrees

Answer:

A = 50°

Step-by-step explanation:

A + B + C = 180°

A + 100° + 30° = 180°

A = 180° - 100° - 30°

A = 50°

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