| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.52 |
| Score | 0% | 70% |
What is the area of a circle with a radius of 2?
| 4π | |
| 5π | |
| 36π | |
| 6π |
The formula for area is πr2:
a = πr2
a = π(22)
a = 4π
What is the circumference of a circle with a radius of 6?
| 12π | |
| 9π | |
| 15π | |
| 34π |
The formula for circumference is circle diameter x π. Circle diameter is 2 x radius:
c = πd
c = π(2 * r)
c = π(2 * 6)
c = 12π
What is the area of a circle with a radius of 2?
| 4π | |
| 5π | |
| 36π | |
| 6π |
The formula for area is πr2:
a = πr2
a = π(22)
a = 4π
What is the area of a circle with a radius of 2?
| 4π | |
| 5π | |
| 36π | |
| 6π |
The formula for area is πr2:
a = πr2
a = π(22)
a = 4π
What is the area of a circle with a radius of 2?
| 4π | |
| 5π | |
| 36π | |
| 6π |
The formula for area is πr2:
a = πr2
a = π(22)
a = 4π