Question

Oblicz Obwód okręgu danym promieniu :
a.1
b.2
c.3
d.4
i średnicy :
a.6
b.9
c.12
d.18

Proszę o obliczenia ;]!

Answer 1

L = 2πr

a.1
2 × π × 1 = 2π

b.2
2 × π × 2 = 4π

c.3
2 × π × 3 = 6π

d.4
2 × π × 4 = 8π

średnicy :

a.6
r=3
2 × π × 3 = 6π

b.9
r=4,5
2 × π × 4,5 = 9π

c.12
r=6
2 × π × 6 = 12π

d.18
r=9
2 × π × 9 = 18π

Pozdrawiam :)

Answer 2

WZORY:
l = 2π * r
l = π * d

promieniu :
a.1
l = 2π
b.2
l = 4π
c.3
l = 6π
d.4
l = 8π

i średnicy :
a.6
l = 6π
b.9
l = 9π
c.12
l =12π
d.18
l=18π