Answer:
Diameter = 103.35 cm
Explanation:
Pizza = circle
Area of a Circle = π * r²
π = 3.1416
r = radius
Area of a pizza = 850cm²
850 = 3.1416 * r²
850/3.1416 = r²
270.56 = r²
√270.56 = √r²
16.45 = r
radius = 16.45 (aprox)
diameter of a pizza = 2π r
diameter of a pizza = 2*3.1416*16.45
diameter of a pizza = 103.35 cm