Question

The length of a rectangle is three times its width and its perimeter is 32m. Find the length of the rectangle

Answer 1

Answer:

L = 12

Step-by-step explanation:

Let lenth be 3b

Perimeter of rectangle = 2[l+b]

32 = 2 [ 3b + b]

32 = 2[4b]

32 = 8b

32/8 = b

4=b

Length = 3b = 3 x 4 = 12

Answer 2

Step-by-step explanation:

let the width =x

length =3x

so perimeter of the rectangle =2*(Length+width)

=32=2*(3x+x)

=8x=32

=x=32/8=4m

length =3*4=12