Respuesta :
Answer:
12
Step-by-step explanation:
3 x 4=12
A rectangle has 4 sides each the same length, 3, so multiply 3 x 4 and you get 12.
The area and perimeter of a rectangle depend on its length and width.
The length of the rectangle is 3 Units. Option C shows the correct value of the length of a rectangle.
What is the area and perimeter of a rectangle?
- Area
The area of a rectangle is the product of the length and width of the rectangle.
Area = Length [tex]\times[/tex] Width
- Perimeter
The perimeter of a rectangle is the total sum of length and width of all sides.
Perimeter = 2 (Length + Width)
Given Information:
A rectangle’s perimeter and its area have the same numerical value. The width of the rectangle is 3 units. So we can write this as,
Area = Perimeter
Length [tex]\times[/tex] Width = 2 (Length + Width)
Substituting the value of the width, we get the length,
[tex]L \times 3 = 2 (L + 3)[/tex]
[tex]3L = 2L + 6[/tex]
[tex]L = 6[/tex]
Hence we can conclude that the length of the rectangle is 3 Units. Option C shows the correct value of the length of a rectangle.
To know more about the area and perimeter of a rectangle, follow the link given below.
https://brainly.com/question/26526597.