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Q: What happens to the circumference of a circle if you double the diameter?

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If you double the circumference. the diameter like wise would double.

It'll more than likely double the circumference, too. BOOM.

Since the equation for circumference is pi*d then if you double the diameter the circumference will be doubled.

I would think it would double also. Say Circle A has a diameter of 1 inch and Circle B has a diameter of 2 inches. To get the circumference, you multiply the diameter by pi (3.14). So 1 x 3.14 = 3.14 so that is the circumference of Circle A. To get the circumference of Circle B you need to multiply 2 x 3.14 = 6.28. And 6.28 is twice 3.14 so I would think the circumference doubles.

When you double the diameter, the circumference is also doubled.

Double the radius.

The circumference of any circle is (pi) x (diameter),and of course, the diameter is double the radius.

Nothing happens. A person sitting next to you won't know that you did anything to your circle. But you'll have a bigger circle. The radius will be double the originasl radius. The circumference will be double the original circumference. The area will be four times the original area.

Easy. First, double the radius to get the diameter. Next, multiply the diameter by pi (about 3.1416). The result is the circumference of the circle.

The circumference also doubles.

multiply 3.14 times the diameter. if u have a radius, double it.

The circumference = pi x r2, and the diameter = 2r. So if you start with the circumference, you divide that number by pi (3.1416), then take the square root. What's left is the value of the circle's radius; double it to get the diameter.

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