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 one year ago
If an edge of a square is increased by 10%,then by how much will its surface area be increased?
 one year ago
If an edge of a square is increased by 10%,then by how much will its surface area be increased?

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manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2increasing a certain thing 'to' or 'by' do u understand the differnce in both of them ?????

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2'by' means certain fraction of total is increased or decreased here in this case it is increased

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2it means here u hav to increase or add the that fraction (10/100) to the initial edge of square

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2that is 10/100 = 0.1 (fraction of total )

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2do u knw the formula of surface area of square?

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2k gud u knw that

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2now see let us suppose we hav the edge of sq. initially be 1 ..then by the defination of 'by' that i hav told u above u can add fraction (0.1) to 1 that is nw the final edge length is 1.1

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2follow till here ?

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2now tell me what is the surface area of sq. with new edge length 1.1????????

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2m singh plss reply??????????/

msingh
 one year ago
Best ResponseYou've already chosen the best response.0wait i m understanding vat u did

ZeHanz
 one year ago
Best ResponseYou've already chosen the best response.0Area of square with edge a is a². Edge of new square is a+10% of a = a + 0.1a = 1.1a. Area of new square is (1.1a)²=1.21a² = a² + 0.21a² = a² + 21% of a². So it is 21 % more.

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2@ZeHanz PLS. DON'T GIVE DIRECT ANSWER

ZeHanz
 one year ago
Best ResponseYou've already chosen the best response.0@manishsatywali : Just thought you had done enough to explain. Sometimes it is better to write the whole thing down, to show the steps. If I had done this right away, I would agree with you ;)

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2bt i also encourage the way u deliver that in steps...........gd to see that

msingh
 one year ago
Best ResponseYou've already chosen the best response.0i think u both have well explained @manishsatywali and @ZeHanz

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2now have you got the idea...........i mean u reach the final answer any difficulty with the method??????????

msingh
 one year ago
Best ResponseYou've already chosen the best response.0no of course thank u @manishsatywali and @ZeHanz

manishsatywali
 one year ago
Best ResponseYou've already chosen the best response.2@ZeHanz .........our combo helped @msingh......it's the best we can make out of openstudy

ZeHanz
 one year ago
Best ResponseYou've already chosen the best response.0@manishsatywali: thank you!
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