Sheila is a cross country runner and she covers a distance of 250m in 150s what is her speed

⊂⊃⊂⊃ω

step-by-step explanation:

i hope this : )

< 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⭐

there are no answer choices

step-by-step explanation: