The diameter of a circle is twice as long as its radius.
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The diameter of a circle is twice as long as its radius.
The diameter of a circle is defined as the distance across the circle through its center. It is directly related to the radius, which is the distance from the center to a point on the circumference of the circle.
By the standard definition in geometry, the diameter () of a circle is expressed in terms of its radius () as:
This equation clearly states that the diameter is twice the length of the radius. Hence, the statement, “The diameter of a circle is twice as long as its radius,” aligns with this fundamental geometric property.
Therefore, the statement is True.
True
M is the center of the circle.
Perhaps \( MF=MC \)
The radius goes from the center to any point on the circle's edge. The diameter goes all the way across the circle, passing through the center. Think of it like this: radius is half-way, diameter is all-the-way!
Because the diameter passes through the center! It's like putting two radius lines end-to-end. Since each radius has the same length from center to edge, diameter = radius + radius = 2 × radius.
Yes, always! Whether your circle is tiny like a coin or huge like a ferris wheel, is a universal rule that never changes.
Try this: "Diameter divides in two" - the diameter can be split into two equal radius pieces. Or think: "Radius is half, diameter is all!"
Just reverse the formula! If , then . So radius equals diameter divided by 2.
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