i need some help understanding the formulas for finding the are for a circle and finding the Circumference.
and the formula they give me i still don't understand can you guys help me understand the easier way to look at the formula?
can't think of a way.
Do you have trouble with the area of a rectangle or a triangle?
Those are just as complicated.
There are geometric justifications for the circular formulas, but if you can't handle the simple formulas, I don't think you'd be happy with the concepts involving their derivation.
Maybe you could try google -- why is the circumference 2 pi r? or something.
Im kinda understanding it so to find the circumference we multiply the diameter by 2?
No.
C = pi * 2 * r
or, just C=πd, where d is the diameter
I'm learning this currently. Circuference=2 times 3.14 times the radius. The raidius is 2 times less than the diameter. Radius=diameter divided by 2.
Area=3.14 times the radius squared. So it would look like this for area: A=3.14(radius times radius). There you go!
Of course! I'd be happy to help you understand the formulas for finding the area and circumference of a circle in a simpler way.
Let's start with the formula for finding the area of a circle. The formula is:
A = π * r^2
where A represents the area and r represents the radius of the circle. To understand this formula, let's break it down:
1. The radius (r) is the distance from the center of the circle to any point on its edge. It essentially defines the size of the circle.
2. The value of π (pi) is a mathematical constant approximately equal to 3.14159. It appears in the formula because it relates the circumference of a circle to its diameter (which is twice the radius).
3. Squaring the radius (r^2) means multiplying it by itself. This step is necessary because the area of a circle is proportional to the square of its radius.
To calculate the area of a circle using the formula, you simply need to square the radius and then multiply it by π.
Now, let's move on to the formula for finding the circumference of a circle. The formula is:
C = 2 * π * r
where C represents the circumference and r represents the radius of the circle. Here's a breakdown of this formula:
1. The circumference (C) is the distance around the edge of the circle. It gives you the total length of the circle's boundary.
2. Again, π (pi) is the mathematical constant that relates the circumference to the diameter of the circle.
3. Multiplying the radius by 2 (2 * r) is necessary because the circumference is equal to the diameter multiplied by π. Since the diameter is twice the radius, we multiply the radius by 2 in the formula.
To calculate the circumference of a circle using the formula, you simply need to multiply the radius by 2 and then multiply it by π.
I hope this breakdown helps you better understand the formulas for finding the area and circumference of a circle. If you have any more questions or need further clarification, feel free to ask!