Question

answer should be 21:5​

Answer 1

Answer:

PLZ MARK BRAINLIEST

x = 180 - 100 = 80 degrees    (STRAIGHT LINE = 180 degrees)

y = 180 - 20 - 30 = 130 degrees     (STRAIGHT LINE = 180 degrees)

(X+Y) : (X-Y) = (130+80) : (130-80) = 210 : 50 = 21 : 5

HOPE IT  HELPS

THANKYOU

PLZ MARK BRAINLIEST