How is circumference different from area ?

see below

Step-by-step explanation:

The circumference is the distance around a circle, think of it as a ribbon

The area is the amount to cover, like a round table cloth

The area of a circle represents the total amount of content inside the circle.

The circumference of a circle is the same as the perimeter, which is the total amount of length outside the entire circle.

Both are also found different using different formulas.

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a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.