8
QuizMultiple Choice

Area of a Circle — Quiz

Question 8 • Grade 7 Mathematics

A circle has a circumference of 2 pi cm. Which statement about the circumference and area is true?

Answer
A
A comparison of the area and circumference is not possible since the area cannot be determined.
B
The numerical value of the circumference is less than the numerical value of the area.
C
The numerical values of the circumference and area of the circle are equal.
D
The numerical value of the circumference is greater than the numerical value of the area.

Explanation

Use the circumference formula C = 2πr. Since C = 2π cm, the radius is 1 cm, so the area is A = πr² = π cm². Numerically, 2π is greater than π, so the circumference’s numerical value is greater than the area’s numerical value.

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