Perimeter is the outside length of an object...three-d or not. So, if you want to find out the outisde length of an object/perimeter, you will have to know the measure of one or two sides (depends on a shape) and add it.
The inverse operation of addition is subtraction. The inverse multiplication by a number other than 0 is division. Multiplication by 0 does not have an inverse operation.
addition
OPERATION
Subtraction
Yes it is : a + b = b + a for all integers a and b. In fact , if an operation is called addition you can bet that it is commutative. It would be perverse to call an non-commutative operation addition.
perimeter is adding the lengths of the sides together
The operation is called addition.
No. Addition and subtraction are the last operations, done on a left to right basis as they have equal precedence. See the related question below.
Only by the definition of a perimeter.
what is the commutative operation of addition
The inverse operation of addition is subtraction. Subtraction undoes addition by taking away a number from the sum to return to the original value.
Anyone who has mastered the measurement of lengths and simple addition can find the perimeter of a plane shape.
Subtraction is the inverse operation to addition. Multiplication is repeated addition.Division is the inverse of multiplication.
addition +
any operation
The operation of addition is directly related to finding area because calculating the area of a shape often involves summing the areas of smaller, constituent parts. For example, to find the area of a rectangle, one multiplies the length by the width, but when dealing with composite shapes, you can break them down into rectangles or other shapes and add their areas together. Thus, addition serves as a fundamental operation in aggregating these individual areas to obtain the total area of a larger shape.
Addition is the inverse operation to subtraction.