the length of a rectangular field is 13 m more than its breadth if the perimeter is 640 M find the length of the field
Answers
Answered by
3
I have the soln but in the soln the rectangular field I taken 30 m ... sorry
but I hope u will understand
but I hope u will understand
Attachments:
trisha40:
your answer is right thanks a lot
welcome
i have do a mistake by saying 30,to 13
Answered by
2
breadth= x
length of the rectangular field = x +13
perimeter = 640 m
then......
2 ( l + b ).. = 640
2 ( x + 13 + x )... = 640
2 ( 2x + 13 ) = 640
2x + 13 = 640 / 2
2x + 13 = 320
2x = 320 - 13
2x = 307
2x = 307
x = 307 /2
length = 307 / 2 + 13
= 307 + 26 / 2
= 334 /2
= 167
length of the rectangular field = x +13
perimeter = 640 m
then......
2 ( l + b ).. = 640
2 ( x + 13 + x )... = 640
2 ( 2x + 13 ) = 640
2x + 13 = 640 / 2
2x + 13 = 320
2x = 320 - 13
2x = 307
2x = 307
x = 307 /2
length = 307 / 2 + 13
= 307 + 26 / 2
= 334 /2
= 167
i am sorry its my fault
Similar questions