Hi. If you don't have a circumference in the question, how do you find the radius!?
The radius is half the diameter.
you need to find the circumference as well... the way you find the circumference is by multiplying pie by the diameter
or the radius is half the diameter
Hello! If you don't have the circumference mentioned in the question, then you will need to have some other information in order to find the radius. The radius of a circle is the distance from the center of the circle to any point on its boundary, also known as the circumference.
Here are a few ways you can find the radius of a circle without the circumference:
1. Diameter: The diameter of a circle is the distance across the circle passing through its center. If you are given the diameter, you can divide it by 2 to find the radius. Mathematically, the formula for finding the radius using the diameter is: radius = diameter/2.
2. Area: If you know the area of a circle, you can use the formula for the area of a circle (A = πr^2) to find the radius. You can rearrange the formula to solve for the radius: radius = √(A/π) or radius = (A/π)^(1/2), where A is the area of the circle.
3. Pythagorean Theorem: If you have a right-angled triangle where one of the sides is the radius, you can use the Pythagorean Theorem to find the radius. Suppose you have the length of the hypotenuse (the longest side, which is the distance from the center to any point on the boundary) and the length of one of the other sides of the right-angled triangle. Then you can use the theorem (a^2 + b^2 = c^2) to find the length of the radius.
Remember, without the circumference, you may need additional information or context to find the radius accurately.