7
QuizMultiple Choice

Area of a Circle — Quiz

Question 7 • Grade 7 Mathematics

Kylie drew a circle with a diameter of 8 centimeters Paige drew a circle with a radius of 3 centimeters Approximately how much larger is the area of Kylie’s circle than the area of Paige’s circle? Use 3 point 1 4 for pi and round to the nearest whole number.

Answer
A
88 cm squared
B
173 cm squared
C
22 cm squared
D
351 cm squared

Explanation

Kylie’s circle has a radius of 4 cm because its diameter is 8 cm. Its area is 3.14 × 4² = 50.24 cm², while Paige’s area is 3.14 × 3² = 28.26 cm². The difference is 50.24 − 28.26 = 21.98 cm², which rounds to 22 cm², choice C.

AI-written and checked against the verified answer.

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