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Area of a circle

7th grade (Year 8 in England) · 16 questions · Common Core: 7.G.B.4 · England: KS3 Geometry, GCSE Foundation Geometry

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Date

Score/ 16

  1. Question 1

    What is the area of a semicircle with radius 12 cm? Round to 1 decimal place.

    Answer

  2. Question 2

    A circle has radius 15 cm. Find its area in cm², rounded to 1 decimal place. (Use the π key.)

    15 cm

    Answer

  3. Question 3

    A circle has diameter 14 cm. Its area is kπ cm². What is k?

    Answer

  4. Question 4

    What is the area of a quarter circle with radius 3 m? Round to 1 decimal place.

    Answer

  5. Question 5

    A circle has radius 12 m. Find its area in m², rounded to 1 decimal place. (Use the π key.)

    12 m

    Answer

  6. Question 6

    A circle has diameter 2 m. Its area is kπ m². What is k?

    Answer

  7. Question 7

    What is the area of a semicircle with radius 6 cm? Round to 1 decimal place.

    Answer

  8. Question 8

    A circle has radius 2 yd. Find its area in yd², rounded to 1 decimal place. (Use the π key.)

    2 yd

    Answer

  9. Question 9

    A circle has diameter 10 ft. Its area is kπ ft². What is k?

    Answer

  10. Question 10

    What is the area of a semicircle with radius 3 yd? Round to 1 decimal place.

    Answer

  11. Question 11

    A circle has radius 8 ft. Find its area in ft², rounded to 1 decimal place. (Use the π key.)

    8 ft

    Answer

  12. Question 12

    A circle has diameter 18 m. Its area is kπ m². What is k?

    Answer

  13. Question 13

    What is the area of a quarter circle with radius 4 cm? Round to 1 decimal place.

    Answer

  14. Question 14

    A circle has radius 2 cm. Find its area in cm², rounded to 1 decimal place. (Use the π key.)

    2 cm

    Answer

  15. Question 15

    A circle has diameter 18 yd. Its area is kπ yd². What is k?

    Answer

  16. Question 16

    What is the area of a semicircle with radius 7 m? Round to 1 decimal place.

    Answer

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  1. 226.2
  2. 706.9
  3. 49
  4. 7.1
  5. 452.4
  6. 1
  7. 56.5
  8. 12.6
  9. 25
  10. 14.1
  11. 201.1
  12. 81
  13. 12.6
  14. 12.6
  15. 81
  16. 77