A: The radius is half the diameter. R: A diameter passes through the circle centre.
Both statements are true, but the reason does not explain the assertion.
○ Both statements are true, and the reason explains the assertion.
○ The assertion is true, but the reason is false.
○ The assertion is false, but the reason is true.
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Both statements are true, but the second statement does not by itself explain the radius-diameter ratio. — Examisthan.com