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Why would the perimeter triple and the area multiply by nine when the radius of a circle is tripled?
Wiki User
∙ 13y ago
Because the perimeter (circumference) is 2*pi*r is proportional to r.
The area a = pi * r2 is proportional to r2
Wiki User
∙ 13y ago
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How is circumference the same to perimeter?
How? They are synonymous. Circumference is the measurement around an object. Perimeter is the edge around an object.Try it like this:To determine the perimeter of a circle, you multiply the radius by two and then multiply that by pi.2rπTo determine the circumference of a circle, you multiply the radius by two and then multiply that by pi.2rπThe same.
Do you multiply to get perimeter?
No, you add up all the sides. Yes, in terms of a circle. To determine the perimeter or circumference of a circle, you must multiply: 2πr or two times Pi times the radius of the circle.
What happens to the area of a circle if the radius is tripled?
The circle becomes an oval
What happens if a circle's radius is tripled?
If the radius is tripled then the Area will be greater by a factor of 9. And the circumference will be greater by a factor of 3.
What happens to the diamenter of a circle if you triple the radius?
It will be twice the size of the tripled radius
What happen to the area of circle when the radius is tripled?
If you triple the radius of a circle, the area will increase by 9. Area is proportional to the square of the radius.
How do you find the area of a circle when you are only given its perimeter?
The Perimeter of a circle is it's circumference. And the circumference is the diameter times pi. So to find the area, divide the circumference by pi, and get the diameter. Then divide the diameter by 2, to get the radius. Then multiply the radius times itself, and multiply that by pi.
What is the formula for finding the radius of a circle when you have the perimeter?
2*pi*radius = perimeter or circumference of a circle radius = circumference/2*pi
When the radius of a circle is tripled what happens to the perimeter and area of the circle?
The perimeter would triple and the area would be multiplied by nine (32). Circumference (perimeter) is (2 x pi x r), so would be (6 x pi x r) for triple the radius, and area is (pi x r2), so would be (pi x 32 x r2) for triple the radius.
How do you convert radius into perimeter?
Multiply the radius by itself, then multiply the result by Pi.
How does the volume of a cone change if the radius is tripled?
it looks like a circle.
Is the radius the measurement of the perimeter of a circle?
No.
