Answer:
Explanation:
(x + y + z) = 180
x : y : z = 4 : 9 : 2
(x+y+z) : x = 15 : 4
180 : x = 15:4
x = (4 * 180)/15 = 48 degrees
180 : y = 15 : 9
y = (9 * 180)/15 = 108 degrees
180 : z = 15 : 2
z = (2 *180)/15 = 24 degrees
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