The original price of a TV is $400. It is discounted 40%. What is the dollar amount of the discount?

the tv is now $240 the amount off is $160

ORIGINAL TV PRICE: $400

DISCOUNT: 40% ——> .40

PRICE AFTER DISCOUNT: $240

DISCOUNT AMOUNT: $160 Dollars were subtracted from the total.

< 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

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