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 2 years ago
If an edge of a square is increased by 10%,then by how much will its surface area be increased?
 2 years 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
 2 years 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
 2 years 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
 2 years 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
 2 years ago
Best ResponseYou've already chosen the best response.2that is 10/100 = 0.1 (fraction of total )

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

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

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

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

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

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

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

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

manishsatywali
 2 years 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
 2 years ago
Best ResponseYou've already chosen the best response.0@manishsatywali: thank you!
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