OGQR 2020: Question No. 100
If the diameter of a circular skating rink is 60 meters, the area of the rink is approximately how many square meters?
| Source | OGQR 2020 |
| Type | Problem Solving |
| Topic | Geometry |
| Sub-Topic | Circle |
| Difficulty | Easy – Medium |
Solution
Given
In this question, we are given
- The diameter of a circular skating rink is 60 meters.
To Find
We need to determine
- The approximate value of the area of the rink, in square meters.
Approach & Working
As the diameter of the rink is 60 meters, the radius of the rink = 30 meters.
- Therefore, the area of the rink = π (30)2 = 900π
- Assuming π = 3.1 (approximate), area = 900π = 900 * 3.1 = 2800 (approximate)
Hence, the correct answer is option D.
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