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anonymous
 5 years ago
Is it possible to change a figure with an area of 18 and a perimeter of 18 to a perimeter of 20, but with the same area?
anonymous
 5 years ago
Is it possible to change a figure with an area of 18 and a perimeter of 18 to a perimeter of 20, but with the same area?

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0P=18 and A = 18 P = 20 and A = 18 that what your asking for?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0its possible, even easy...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I need to change the perimeter, but leave the area the same

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0what shape are you needing to change? rectangle, triangle, pentaangle?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0i was hoping it was a rectangle :) ok.... both areas need to be 18. 18 = lw right?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0we can get a "value" for either l or w from this to use in the perimeter equations. Lets say: 18/w = l good ?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0p = 2l + 2w 4 sides all together, 2 of each right?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0so: just use our "value" in this equation like this: 18 = 2(18/w) + 2w

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.018 = 36/w + 2w.... lets get a common denominator to make life easy 18 = 36 + 2w^2  still with me? w

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0tell me when I do something stupid :) we can multiply that bottom "w" across to the 18 right? 18w = 36 + 2w^2

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0we can... now put all like terms to one side 0 = 2w^2 18w +36 we are ready to find out what w can be right?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0all terms to one side is what I meant to type :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok Yeah, we're ready =)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0factor out the 2, its in our way 0 = 2(w^2 9w +18) now we know that anything times zero = zero, our only choice is to make that left part equal to zero. w^2 9w +18 = 0 (w6) (w3) = 0 when w = 6 or 3 are good. actually w can stand for length or width here so we found both numbers :) lets try it our: A = 6(3) = 18 P = 2(6) + 2(3) P = 12 + 6 = 18 were good for that one right?

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0and by left I mean right..... its like haveing a stroke....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0lets go for 20 :) same steps but I aint gonna talk so much...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.020 = 2(18/w) + 2w 20 = 36/w + 2w 20 = 36 + 2w^2  w 20w = 36 +2w^2 0 = 2w^2 20w +36 0 = 2(w^2 10w +18) w^2 10w +18 = 0 now this one we use the quadratic formula on because it wont behave for us :)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.010 + sqrt(100 (4)(18))  2 10 + sqrt(28)  2 w = 5 + sqrt(7) and l = 5sqrt(7) lets check them out

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0A = (5sqrt(7)) (5+sqrt(7)) A = 25  7 A = 18

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0can i get you to help me with my problems

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0sure, just on sec please

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0P = 2(5sqrt(7)) + 2(5+sqrt(7)) P = 10 2sqrt(7) + 10 + 2sqrt(7) P = 20 +2sqrt(7) 2sqrt(7) P = 20

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i have to go now. Bye, and thanks again!
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