Table of Contents
What happens if you double the area of a circle?
If the radius of a circle is doubled, the area of the circle will be quadrupled and the circumference will also be doubled.
What is the ratio of the area of the larger circle to the area of the smaller circle such that the radius of the larger circle is three times the radius of the smaller circle?
Large circle: So, if the small circle has radius r1, then its area is A1=πr1^2. If the large circle has radius r2, then its area is A2=πr2^2.
What happens to a circle if you double the diameter?
If the diameter of a circle is doubled, its area increases 4 times.
What is double the radius called?
A line segment with each of its endpoints on the circle, that passes through the center of the circle, is called a diameter of the circle. The length of a diameter is twice the radius.
What is the ratio of area of smaller circle and bigger circle?
The ratio of the area of a smaller circle to the bigger circle is 1 : 4 .
What is the area of the big circle?
Use the formula for area of a circle, A=πr2 , where r is the radius of the circle. Substitute 3 for r in the formula.
What is the ratio of one circle to the other?
This is saying that the ratio (or similarity statement) of one circle is twice the other, which would look like 1:2 or 1/2. Let’s look at the difference between area and circumference.
How to find the area of a circle using diameter?
Area of a circle = π * r 2. Area of a circle diameter. The diameter of a circle calculator uses the following equation: Area of a circle = π * (d/2) 2. Where: π is approximately equal to 3.14. It doesn’t matter whether you want to find the area of a circle using diameter or radius – you’ll need to use this constant in almost every case.
What is the difference between diameter and radius in math?
💡 The diameter is the line that crosses the center of the figure and touches both of its margins. The radius begins at the center of the figure and ends at the figure’s margin. You can find diameter of a circle by multiplying the radius of a circle by two: Diameter = 2 * Radius
Where does the radius of a circle begin and end?
The radius begins at the center of the figure and ends at the figure’s margin. You can find diameter of a circle by multiplying the radius of a circle by two: Diameter = 2 * Radius