If (X) is 150 more than (Y), what is the value of (Y) in the figure on the right hand side?
A. 15 degree
B. 16 degree
C. 17 degree
D. 18 degree
সঠিক উত্তরঃ
A.
15 degree
Explanation: Assuming angles are supplementary (linear pair): (X + Y = 180).
Given (X = Y + 150).
(Y + 150 + Y = 180) => (2Y = 30) => (Y = 15).
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