Limas T.ABCD diketaui panjang AB=BC=CD=AD. jika keliling alas 64 cm dan tinggi 15 cm. maka volume limas trsbt adalah..............
cynthia3
Dik = keliling alas = 64 cm tinggi = 15 dit = volume = ... ? jawab 1. k = 4s 64 = 4s s = 64 : 4 = 16 2. luas alas = 16 × 16 = 256 3. volume = 1/3 × luas alas × T = 1/3 × 256 × 15 = 1280 cm³
tinggi = 15
dit = volume = ... ?
jawab
1. k = 4s
64 = 4s
s = 64 : 4
= 16
2. luas alas = 16 × 16
= 256
3. volume = 1/3 × luas alas × T
= 1/3 × 256 × 15
= 1280 cm³