Jamelia estimates the square root of 72 in the following way: √72 = 2√36 = 2*6 = 12 (a) explain why her reasoning is incorrect. (b) estimate the square root of 72 to the nearest tenth. show your work.

< 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⭐

555.99.

step-by-step explanation:

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