Arc length, sector area and perimeter as a part of the circle Quiz: answer key
Every answer, with a link to its step-by-step solution
| # | Answer | Level | Solution |
|---|---|---|---|
| 1 | D 6.28 cm | Easy | Solved step by step |
| 2 | 15.71 cm² | Easy | Solved step by step |
| 3 | B 6.28 cm | Easy | Solved step by step |
| 4 | 25.13 cm² | Easy | Solved step by step |
| 5 | B 6.28 cm | Medium | Solved step by step |
| 6 | perimeter ≈ 21.42 cm | Medium | Solved step by step |
| 7 | C 18.85 cm² | Medium | Solved step by step |
| 8 | angle = 120° | Harder | Solved step by step |
| 9 | angle = 60° | Harder | Solved step by step |
| 10 | perimeter ≈ 92.83 cm | Harder | Solved step by step |
Grade
Count your right answers and divide by the number of questions: A 90% or more, B 80%, C 70%, D 60%, F below 60%.