The length and breadth of a
rectangle are in the ratio
4:1 and its area is 400 sq.
units, then its length is​

Answer:

Length = 40

breadth = 10

Step-by-step explanation:

given –

area of rectangle = 400 sq. unit

ratio of length to breadth = 4:1

to find –

length and breadth of rectangle

solution –

let us think length and breadth (4:1) as 4x and x respectively

length×breadth = area of the rectangle

4x×x = 400

4x² = 400

x² = 400÷4

x² = 100

x = √100

x = 10

breadth = 10

length = 4x = 4×10 = 40

Hence length is 40 and breadth is 10.

hope it helps.