A textbook measuring 15 cm *10 cm*2.5 cm is to be covered with brown paper. find how much paper is required for covering the book if 84 sq cm gets used up in fold?
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Step-by-step explanation:
area of text book for covering = 2(lb+bh +hl) =2(15×10+10×2.5+2.5×15)cm²
=2(150+25+37.5)cm²
=2( 212.5)cm²
= 425cm²
paper required for covering = area to cover - covered area
=425cm² - 84cm²
= 341cm²
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15*268-1°×5447_^123(654667)
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