Respuesta :

iamathing

Answer:

radius 12 units = 452.16 units²

diameter 16.8 units = 221.5584 units²

radius 3.4 units = 36.2984 units²

diameter 10 units = 78.5 units²

Formula for area of circle: [tex]\pi r^{2}[/tex]

meisbonjour

Answer:

1. 452.16

2. 221.5584

3. 36.2984

4. 78.5

Step-by-step explanation:

Plug in each one to the equation to find the area of a circle. Make sure to divide the diameters in half to find radius.