Answer:
In figure, as [given]
[corresponding angles] (1)
As [given]
[co interior angles] (1/2)
(1/2)
OR
Let the smallest angle be Then, the other two angles will be and (1/2)
[sum of three angles of triangle is ](1/2)
(1/2)
The three angles are 30°,60° and 90°. (1/2)
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