keliling 44 luasnya berapa ?

phi x diameter = 44
22/7 x d = 44
22d = 44 x 7
d = 44/2 x 7
d = 14

L=phi x r x r
L=22/7 x 7 x 7
L=22 x 7
L=154

Keliling = π × diameter

[tex] \frac{22}{7} [/tex] × d = 44

22 d 44 × 7

d = [tex] \frac{44}{22} [/tex] × 7

d = 14

Luas = π × [tex] r^{2} [/tex]

Luas = [tex] \frac{22}{7} [/tex] × 7 × 7

Luas = 22 x 7

Luas = 154