Ace the 2025 NYSTCE 222 Childhood Math Test – Unleash Your Inner Math Whiz!

Question: 1 / 400

When is a line segment considered a diameter?

When it connects two points on the circle

When it passes through the center of the circle

A line segment is considered a diameter of a circle when it fulfills two specific conditions: it connects two points on the circumference of the circle and also passes through the center of the circle. This means that a diameter is the longest possible chord in a circle, and it divides the circle into two equal halves.

The significance of passing through the center is that it guarantees that the distance from the center to either endpoint of the line segment is equal to the radius of the circle. Therefore, simply connecting two points on the circle (without passing through the center) would not fulfill the requirements to be classified as a diameter.

In essence, the definition of a diameter directly relates to its position concerning the center of the circle, which is why that option is the most accurate representation of what constitutes a diameter.

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When it is longer than the radius

When it is perpendicular to a chord

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