The length of a rectangular field is 4 times its breadth . Its perimeter is 400m , then find its length and breadth .
Please do not give direct answers .
Answers
Step-by-step explanation:
Let the breadth of the rectangle=x
Length of the rectangle=4x
Perimeter=400(GIVEN)
perimeter=2(l+b)
400=2(4x+x)
400=2(5x)
400=10
(breadth)x=400/10
=40m
length=4x
=4x40
=160m
THEREFORE the length and breadth of the field=160m and 40m
Answer:
The respective length and breadth of the field are 160m and 40 m respectively.
Step-by-step explanation:
Here we have been mentioned that the respective length of the rectangular field is 4 times the breadth. Let us take into the assumption that the breadth is n and therefore we have the length is 4n. Now it has been also mentioned that the perimeter is 400m. The formula of the perimeter of the rectangular field is below:
∴
⇒ 400 =
⇒ 400 = 10n
⇒ n = 40
Therefore we have the breadth to be 40 m and length = 4 × 40 m = 160m