Jawabanmu

2014-01-16T17:48:51+07:00
Luas juring/luas lingkaran = 100°/360°
3,14/π×r² = 100°/360°
3,14 x 360 = 3,14xr²x100°
1130,4 = 314 r²
3,6 = r²
√3,6 = r
2√3,6 = d