Multiple choice

In a circular ground, a rectangular tank measures 130m × 110 m, if the area of the remaining part is 20350 m2 . So the radius of the field will be ?

  1. 95 m

  2. 115 m

  3. 118 m

  4. 105 m

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Circular ground with rectangular tank. Rectangle area = 130 × 110 = 14300 m². Remaining area = 20350 m². Total circle area = 14300 + 20350 = 34650 m². Circle area = πr² = 34650, so r² = 34650/π ≈ 34650/3.14 ≈ 11035. r = √11035 ≈ 105 m. The radius is 105 meters.

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