yg ini juga yh saya mohon

25 . keliling = phi × diameter
= 3,14 × 200
= 628
26. luas 1 = d1×d2 : 2
= 16 × 12 : 2
= 96
luas 2 = 2 × ( phi × r × r )
= 2×( 3,14 ×5×5)
= 2×78,5
= 157
96 + 157 =253
27 . keliling = 2× ( p+l )
= 2× 70=140
140 × rp 100.000 = 14.000.000