I need some help 50 points!

distance between a number and zero

|a| = a if a >= 0 and |a| = -a if a < 0

|4| = 4    and   |-4| = 4

nonnegative

symmetric over the y-axis

left line is y = -x for x < 0

right line is y = x for x >= 0

Axis of symmetry: y-axis

Vertex: (0, 0)

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

< 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⭐