18
9 Or - 3 x 4 = 12 so 3 x 3 = 9
12 feet (4 sides x 3' = 12')
12 yards (4 sides x 3 = 12)
12cm (4 sides x 3 = 12)
14 feet
Just add together the 4 given dimensions to find the perimeter of the room.
18
Not at all. For example:A square of 2 x 2 will have a perimeter of 8, and an area of 4. A rectangle of 3 x 1 will also have a perimeter of 8, and an area of 3.A "rectangle" of 4 x 0 will also have a perimeter of 8, but the area has shrunk down to zero. The circle has the largest area for a given perimeter/circumference.
1 x 4 or 2 x 3
Side length of a rhombus = x + 3 (a rhombus has 4 congruent sides)Perimeter = 4(x + 3) = 4x + 12
Yes. A 1 x 4 and a 2 x 3 have the same perimeter.
A 20 x 20 room will have a perimeter of 20 + 20 + 20 + 20 = 80.
The perimeter of the first one is 12 + 4 + 12 + 4 = 32 The perimeter of the second one is 13 + 3 + 13 + 3 = 32 So, yes, their perimeters have the same length.
20
4 inches x 3 sides = 12 inches for the perimeter.
Perimeter = 2(Length + Width) = 2*(x+1 + x-3) =2*(2x - 2) = 4*(x - 1)