Respuesta :

tramserran

Length (L): 3w    ⇒3(4) = 12

width (w): w        ⇒ 4

Area (A) = L x w

          A = 12 x 4

          A = 48

Answer: 48 m²

isyllus

Answer:

48 m²

Step-by-step explanation:

A rectangle has width and length as dimension.

The rectangles width is 4 m

The length of a rectangle is 3 times it’s width.

Therefore, Length = 3w

Length =  3(4)

            =  12 m

L = 12 and w = 4

Area of rectangle = L x W

                             =  12 x 4

                             =  48 m²

Hence, The area of rectangle is 48 m²