What is the measure of A?

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°