Answer:
m∠A = 100
m∠C = 50
Step-by-step explanation:
let 'x' = m∠A
let 'x/2' = m∠C
x + x/2 + 30 = 180
3/2x = 150
x = 150(2) / 3
x = 300/3
x = 100
m∠A = 100°
m∠C = 100/2 or 50°
