Question

If the radius of the circle is 3 cm, what is the measure of the longest chord?

A. 3 B. 6 C. 9 D. 12

Answer 1

B. 6

Explanation:

A chord of a circle is a line segment where both endpoints land on the circumfrence of the circle. The longest chord would be at the diameter, which is 2r (2 x 3).

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Answer 2

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Answer:

B. 6

Explanation:

The longest chord of a circle is the diameter, twice the length of the radius.

2(3 cm) = 6 cm