flowerpuff
Luas juring = luas lingkaran x Ф/360 = 1/2 x 22/7 x 49 x 60/360 = 12,8333 cm²
0 votes Thanks 1
suwitoanggara
Luas juring = sudut pusat/ 360 x luas lingkaran = sudut pusat/ 360 x πr² = 60/360 x 22/7 x (7)² = 1/6 x 22/7 x 49 = 1078/42 = 25,666667 = 26
= sudut pusat/ 360 x πr²
= 60/360 x 22/7 x (7)²
= 1/6 x 22/7 x 49
= 1078/42
= 25,666667
= 26