Brian grilled a hamburger the diameter of the hamburger was 5 cm what was the area of the burger
15.7 cm^2
78.5 cm^2
19.625 cm^2
12.56 cm^2
The area of a circle can be calculated using the formula A = πr^2, where A is the area and r is the radius. In this case, the diameter is given as 5 cm, so the radius is half of that, which is 2.5 cm.
Substituting the value of the radius into the formula, we get:
A = π(2.5 cm)^2
A = π * 6.25 cm^2
A ≈ 19.625 cm^2
Therefore, the area of the hamburger is approximately 19.625 cm^2.