| 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 3?
| 4π | |
| 7π | |
| 16π | |
| 9π |
The formula for area is πr2:
a = πr2
a = π(32)
a = 9π
What is the circumference of a circle with a radius of 17?
| 34π | |
| 4π | |
| 16π | |
| 3π |
The formula for circumference is circle diameter x π. Circle diameter is 2 x radius:
c = πd
c = π(2 * r)
c = π(2 * 17)
c = 34π
What is the area of a circle with a radius of 3?
| 4π | |
| 7π | |
| 16π | |
| 9π |
The formula for area is πr2:
a = πr2
a = π(32)
a = 9π
What is the area of a circle with a radius of 3?
| 4π | |
| 7π | |
| 16π | |
| 9π |
The formula for area is πr2:
a = πr2
a = π(32)
a = 9π
What is the area of a circle with a radius of 3?
| 4π | |
| 7π | |
| 16π | |
| 9π |
The formula for area is πr2:
a = πr2
a = π(32)
a = 9π