hitunglah luas pemukaan dan volume bangun ruang berikut!

d.
lp = 10² + 4( 10 * 12 * 1/2)
lp = 100 + 4(60)
lp = 100 + 240
lp = 340 cm²

v = 1/3 * 10² * 12
v = 400cm³

e.
lp = 2(5*9) + (6+6+9+9)20
lp = 45(2) + 20(30)
lp = 90 + 600
lp = 690cm²

v = 5* 9 * 20
v = 900cm³