Brian grilled a hamburger. The diameter of the hamburger was 5 cm. What was the area of burger?
The area of the burger can be calculated using the formula for the area of a circle:
Area = πr^2
Given that the diameter of the hamburger is 5 cm, the radius (r) would be half of the diameter, so r = 2.5 cm.
Substitute the radius into the formula:
Area = π(2.5)^2
Area = π(6.25)
Area ≈ 19.63 cm^2
Therefore, the area of the hamburger is approximately 19.63 square centimeters.