The length of a rectangular field is 20 meter more than its breadth If the perimeter of the field - Maths - Mensuration

Question

The length of a rectangular field is 20 meter more than its breadth
If the perimeter of the field is 280 meter, what is its length

Varun.Rawat · Accepted Answer

Let the breadth of the field = x mthen length of the field = x + 20 mNow, perimeter = 280 m⇒2length + breadth = 280⇒length + breadth = 140⇒x + 20 + x = 140⇒2x + 20 = 140⇒2x = 140 - 20⇒2x = 120⇒x = 1202 = 60Now, breadth = x m = 60 mlength = x+20 m = 60+20 m = 80 m

The length of a rectangular field is 20 meter more than its breadth. If the perimeter of the field is 280 meter, what is its length