The area of a circle with radius 5 cm is:

The area of a circle with radius 5 cm is:

• A. 125π cm^2
• B. 10π cm^2
• C. 25π cm^2
• D. 5π cm^2

Answer: (C)

Area comes from the formula A = π r^2, which shows the circle’s area grows with the square of the radius. With a radius of 5 cm, the area is A = π × (5 cm)^2 = π × 25 cm^2 = 25π cm^2. That matches the correct result. Numerically, that’s about 78.54 cm^2. The other numbers would come from using different radii (for example, 125π would require r^2 = 125, etc.), so they don’t fit a radius of 5 cm.

Area comes from the formula A = π r^2, which shows the circle’s area grows with the square of the radius. With a radius of 5 cm, the area is A = π × (5 cm)^2 = π × 25 cm^2 = 25π cm^2. That matches the correct result. Numerically, that’s about 78.54 cm^2. The other numbers would come from using different radii (for example, 125π would require r^2 = 125, etc.), so they don’t fit a radius of 5 cm.