Question

calcule a área de cada circulo​

Answer 1

a)

r = 1

A = π.r²

A = 3,14 . (1.1)

A = 3,14 . 1

A = 3,14 cm²

b)

r = 1,5

A = 3,14 . (1,5 . 1,5)

A = 3,14 . 2,25

A = 7,065 cm²

c)

r = 4

A = 3,14 . ( 4.4)

A = 3,14 . 16

A= 50,24 cm²