cantidad de llaves con la misma presion de agua cada una abiertas para llenar una piscina y el tiempo utilizado es variable directamente proporcional?

< 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⭐

i just took the test, the correct answer is .. 31.5 in.

answer: it is d

step-by-step explanation:

answer: apothems is your answer

step-by-step explanation: hope u get it right