Question

the area of a rectangle is 256.6 m². if the length is 18 m, what is the perimeter of the rectangle​

Answer 1

Answer:

64.5 m.

Step-by-step explanation:

We know ,

• Area = l * b
• 256.6 m² = 18 * b
• b = 256.6m²/18
• b = 14.25 m .

Perimeter ,

• P = 2 ( l + b )
• P = 2 ( 18 + 14.25 ) m
• P = 2 ( 32.25 m )
• P = 64.5 m

Answer 2

Solution :

Area of the rectangle = 256.6 m²

Length of the rectangle = 18 m

We know that,

Length * Breadth = Area (Rectangle)

• 18 m * b = 256.6 m²
• b = 256.6 m²/18 m
• b = 14.25 m

Now, Perimeter of the rectangle :

We know that,

2( Length + breadth) = Perimeter (Rectangle)

• 2( 18 m + 14.25) = Perimeter
• 2 (32.25 m) = Perimeter
• 64.5 m = perimeter