The length of a rectangle is 8 cm and its width is 3 cm.

what is the effect on the area of the rectangle when all of its dimensions are multiplied by 14 ?

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the area of the rectangle is multiplied by

< 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⭐