Question

 Two adjacent angles of a parallelogram are in the ratio 1:3 then the smaller angle is ---------- *​

Answer 1

hence the angle are 1x and 3x

we know that the adjacent angle of parallelogram ==> 180°

hence,

1x + 3x = 180°

4x = 180°

x = 180/4= 45.

so,

first angle => 45°

second angle => 45× 3= 135°

so, the smaller angle = 45° which is 1

hence your answer is "1"