Which of the following is a negative rational number? WILL MAR BRAINLEST A) −4.5
B) −π
C) - √5

-4.5

Step-by-step explanation:

A rational number is a number made by dividing two integers. An interget is a number that can be represent without a fraction.

A) -4.5=-9/2. Is a negative AND rational number.

< 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⭐