hitunglah luas juring

Luas juring = bsr sudut/360xluas lingkaran
=20/360 x 3.14x18x18
= 56,52cm²

= 20/360 x 3,14 x 18 x 18
= 1/18 x 56,52 x 18
= 56,52/18 x 18
= 3,14 x 18
= 56,52

maaf klo salah