Multiple choice

The area of the region bounded by the circle x2 + y2 = 1 is

  1. 2π sq. units

  2. π sq. units

  3. 3π sq. units

  4. 4π sq. units
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The area of a circle with radius r is pi*r^2. For x^2 + y^2 = 1, the radius is 1, so area = pi * 1^2 = pi.

AI explanation

The equation x squared plus y squared equals 1 represents a circle centered at the origin with a radius of 1 unit. The area of a circle is calculated using the formula pi times the radius squared. Substituting the radius of 1 into the formula gives an area of pi square units.

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