Area of a circle with a diameter of 63

That is a question about circle area.

To calculate the area of a circle, we multiplicate the constant pi () by the radius (of the circle) squared. The expression represents that is below:

In our problem, we don't know what is the circle raius, but we know the diameter. In a circle, the diameter is equal the double radius.

So, to know the radius of our circle, we divided the diameter by 2. Consequently, the raius of our circle is .

Now, we should use the expression and we will find the area:

Therefore, the area of a circle with a diameter of 63 is approximately 3115.665.

I hope I've helped. :D

Enjoy your studies! \o/

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.