Respuesta :

Answer:

b) 153.86 m^2

Step-by-step explanation:

Area=Pi x R^2

Area=3.14 X 7^2

Area=3.14 x 49

Area=153.86

d. 38.47 [tex]m^{2}[/tex]

circumference is 21.99114858.

diameter is 7.000000002.

radius is 3.500000001.

area is 38.48451003.

Hope I helped you!

Succes!