###### Asked in Math and Arithmetic

Math and Arithmetic

# What is the perimeter of 6 cm X 4 cm?

## Answer

###### Wiki User

###### June 12, 2015 12:50AM

6+4+6+4=20 cm

## Related Questions

###### Asked in Math and Arithmetic, Algebra, Geometry

### What is the largest and the smallest perimeter posssible for a rectangle with a area of 36cm2?

The smallest perimeter is that for a square with sides of 6 cm.
That is to say, a perimeter of 4*6 = 24 cm.
There is no maximum.
Suppose the shorter side is x cm.
Then, for the area to be 36 cm2, the longer side must be 36/x
cm
Then the perimeter is 2x + 72/x cm. x can decrease towards 0 and
as it does 72/x will increase without limit, making the perimeter
"infinite".
Try it:
If smaller side 1 cm, then longer side = 36 cm and perimeter =
74 cm
0.1 cm 360 cm 720.2 cm
0.01 cm 3600 cm 7200.02 cm
etc

###### Asked in Math and Arithmetic, Geometry

### What is the area of a perimeter of 20 centimeters?

The perimeter and area don't depend on each other. Knowing
one
doesn't tell you the other.
-- A circle with perimeter (circumference) of 20 cm has area of
31.83 cm2.
-- A square with perimeter of 20 cm has area of 25 cm2 .
-- A (9 x 1) rectangle has perimeter of 20 cm and area of 9 cm2
.
-- A (8 x 2) rectangle has perimeter of 20 cm and area of 16 cm2
.
-- A (7 x 3) rectangle has perimeter of 20 cm and area of 21 cm2
.
-- A (6 x 4) rectangle has perimeter of 20 cm and area of 24 cm2
.

###### Asked in Math and Arithmetic

### What happens to the perimeter of the rectangle if the length is decreased by 4 cm and the width is increased by 2 cm?

The perimeter decreases by 4. Decreasing the length by 4
decreases the perimeter by 8. Increasing the width by 2 increases
the perimeter by 4. -8+4=-4
For example: Area of a rectangle could be: 8 x 6 (8 being the
length and 6 being the width). The perimeter is 8+8+6+6=28
If the length is decreased by 4 then it becomes 4 If the width
is increased by 2 then it becomes 8.
The perimeter becomes 4+4+8+8=24

###### Asked in Math and Arithmetic, Geometry

### How do you convert 4cm perimeter to cm2?

By working out the area inside the 4 cm
perimeter.
examples
If that 4 cm is the perimeter around a square of side 1 cm, the
area is 1 cm x 1 cm = 1 cm2;
If that 4 cm is the perimeter around a rectangle of sides 0.5
cm, 1.5 cm, 0.5 cm, 1.5 cm, the area is 0.5 cm x 1.5 cm = 0.75
cm2;
If that 4 cm is the perimeter around a circle (normally called
the circumference of the circle), the area is 4/π cm2 ≈ 1.27 cm2
(which is the largest area possible);
Any other shape will depend upon the shape.

###### Asked in Math and Arithmetic, Algebra, Geometry

### If 2 different rectangles have the same perimeter why is the area different for each?

Perimeter = 2 x (length + width), area = Length x width.
Perimeter is not directly related to area except in the cases of
circles and squares.
Consider a rectangle of 60 sq cm: the integer possibilities for
length and width are numerous: 1 x 60, 2 x 30, 3 x 20, 4 x 15, 5 x
12 and 6 x 10.
The respective perimeters are 122 cm, 100 cm, 46 cm, 38 cm, 34
cm and 32 cm.
Note that the nearer the shape becomes to a square, the smaller
the perimeter. (A square would have a perimeter of a whisker under
31 cm.)

###### Asked in Math and Arithmetic, Algebra, Geometry

### How can a figure have the same area and a larger perimeter?

Consider a square with sides of length x cm whose area is x2 cm
and perimeter is 4x cm.
Next consider a rectangle with sides of 2x cm and x/2 cm. It
area is 2x*x/2 = x2, the same as for the square. But its perimeter
is 2*(2x+x/2) = 5x > perimeter of the square.
Perimeter of 3x * x/3 = 62/3x cm.
Perimeter of 100x * x/100 = 200.02x cm
Perimeter of 1000000x * x/1000000 = 2000000.000002x cm.
As you can see, it is possible to increase the perimeter without
limit.

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