Geometry and Trigonometry practice question

Answer: 14

πr² = 49π gives r² = 49, so r = 7. The diameter is 2r = 14.

Common wrong answers

If you answered 7

7 is the radius. The diameter is twice the radius.

If you answered 49

49 is r², not a length.

If you answered 98

98 is 2 × 49, doubling r² instead of r.

More Geometry and Trigonometry questions

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