Multiple choice

What is the area of the largest circle that can be drawn inside a rectangle with side 21 cm and 30 cm respectively ? (in cm2)

  1. 338.8

  2. 346.5

  3. 358.2

  4. 340.6

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

The largest circle inside a rectangle has a diameter equal to the shorter side. Here, the rectangle is 21 cm by 30 cm, so the maximum diameter is 21 cm, making the radius 10.5 cm. Area = pi * r^2 = (22/7) * 10.5 * 10.5 = 346.5 cm^2. Option A (338.8) is incorrect calculation. Option C (358.2) uses wrong dimensions. Option D (340.6) is a miscalculation.

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