A welder can weld 2 angle irons together in 2 minutes. Over the course of an entire year she will assemble 1,000 units, each of which requires 3 such welds. If she is paid $25 an hour, how much is her annual labour cost?

< 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⭐

step-by-step explanation:

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the answer is 3/2 and for decimal: 1.5

hope i

-lavira: )