Question

in a rectangle length is 3 times the breadth and its perimeter is 40cm make an equation​

Answer 1

Answer:

Breadth = 5 cm,

5 cm,Length = 15 cm

Step-by-step explanation:

Dimensions of a rectangle:

Let breadth (b)= x cm

Length (l) = 3x cm

Perimeter (P) = 40 cm

2(l+b) = 40

2(3x+x)=40

2×4x = 40

8x=40

x = 40/8

x = 5

Therefore,

Breadth (b) = x = 5 cm,

Length (l) = 3x = 3×5 = 15 cm.

Hope it helps u.