lingkaran kelilingnya 44cm .hitunglah luasnya!

langsung aja y

K = 2πr
44 = 2πr
22 = 22/7 r
22 × 7/22 = r
7 = r
jari²nya yaitu 7 cm

maka

L = πr²
L = 22/7 × 7 × 7
L = 22 × 7
L = 154 cm²

semoga berguna +_+

Keliling = π x d
44 = ²²⁄₇ x d
d = 44 x ⁷⁄₂₂
d = 2 x 7
d = 14
d = 2r
r = ½d
r = ½ x 14
r = 7 cm

L = ²²⁄₇ x 7 x 7 = 154 cm²
#semoga membantu