Need an explanation in this problem

The line from Y to W bisect the angle W.

Half the angle of W is given as 56 degrees,

so the full angle of W is 56 x 2 = 112 degree.

In a rhombus opposite angles equal each other, so angle Y would equal angle W.

This means angle XYZ is 112 degrees.

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17