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If the diameter of a circular skating rink is 60 meters, the area of the rink is approximately how many square meters? – OGQR 2020 Question #100 with Solution

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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