luas lingkaran dengan keliling 88 cm adalah..

K = π x d
88 = 22/7 x d
28 cm = d
14 cm = r
__________
Luas Lingkaran
> π x r²
> 22/7 x 14 x 14
> 22 x 2 x 14
> 44 x 14
> 616 cm²



Semoga Bermanfaat

Geometri

K = 2 pi r
r = 88/44/7 = 2× 7 = 14 cm

L= pi r^2
= 22/7 (14cm)^2
= 22×2 × 14cm^2
= 616 cm^2