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.
It will be twice the size of the tripled radius
The area increases as the square of the radius (or diameter). So if you double the radius you * 4 (quadruple) the area. Treble the radius, you *9 the area.
2*pi*radius = perimeter or circumference of a circle radius = circumference/2*pi
A line of any length may act as the radius of a circle. The radius is the distance from the centre to the perimeter of a circle.
The radius of a circle is a line that starts at the center of the circle and ends somewhere along the perimeter of the circle. The diameter is a line that starts at the perimeter of a circle, goes through the center of the circle, and ends at the opposite perimeter of the circle. This a diameter is twice as long as a radius and can be thought or as consisting of two radii.
The circle becomes an oval
It will be twice the size of the tripled radius
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.
It is increased nine fold. New Area = 9*old area.
The area increases as the square of the radius (or diameter). So if you double the radius you * 4 (quadruple) the area. Treble the radius, you *9 the area.
Because the perimeter (circumference) is 2*pi*r is proportional to r. The area a = pi * r2 is proportional to r2
If you triple the radius of a circle, the area will increase by 9. Area is proportional to the square of the radius.
2*pi*radius = perimeter or circumference of a circle radius = circumference/2*pi
Circumference = pi x diameter so if the radius is 5 then the diameter is 10 Circumference = pi x 10 = 31.415 If we triple the radius to 15, then the diameter is 30, so Circumference = pi x 30 = 94.245 Which looks like triple the first circumference. So if the radius is tripled, the circumference is also tripled.
it looks like a circle.
No.
You get 2 circles of diameter. If you were trying to find a perimeter, Never double the diameter. If you have a radius, You have to double it to get a perimeter.