Question

помогите пожалуйста дам 100б ​

Answer 1

Ответ:

1) r = 2; d = 4; C = 4π; S = 4π

2) d = 8; r = 4; C = 8π; S = 16π

3) C = π; r = 0.5; d = 1; S = 0.25π

Пошаговое объяснение:

d = 2r

c = 2πr

S = πr²

1) r = 2; d = 2*2 = 4; C = 2π*2 = 4π; S = π*2*2 = 4π

2) d = 8; r = 8/2 = 4; C = 2π*4 = 8π; S = π*4*4 = 16π

3) C = π; r = π/2π = 0.5; d = 0.5*2 = 1; S = π*0.5*0.5 = 0.25π