Circles practice 1
- 4. Arc Length What is the length of arc AB? Formula: m arc/360 x circumference Answer: 3.92
- 5. Arc Length What is the length of arc XY? Formula: m arc/360 x circumference Answer: 15.63
- 6. Area What is the area of the circle below? Formula: πr2 Answer: 452.16 cm2
- 7. Area What is the area of the circle below? Formula:πr2 Answer: 78.5 ft2
- 8. Area If the area of a circle is 530.66 cm2 what is the length of the diameter? (use 3.14 for pi) πr2= 530.66 Answer: 13
- 9. Sectors What is the area of the sector below? Formula: m arc/360 x area Answer: 23.31
- 10. Sectors What is the area of the sector below? Formula: m arc/360 x area Answer: 56.22 cm2