tumpukan pasir berbentuk kerucut, jari - jari alasnya14 dm, tinginya 1,8m, berapa dm3 volume pasir tersebut

Halo MIN D, kakak bantu jawab ya.. Jawaban: 3.696 dm³. Soal ini berkaitan dengan bangun ruang sisi lengkung, yakni kerucut. Yuk ingat lagi rumus volume kerucut.. V = 1/3 ⋅ La ⋅ t La = πr² Keterangan: V: volume La: luas alas t: tinggi r: jari-jari π = 3,14 atau 22/7 Diketahui: - r = 14 dm - t = 1,8 m Ditanya: Volume pasir *Merubah satuan KIta ubah satuan tinggi menjadi dm ya.. 1 m = 10 dm t = 1,8 m = (1,8 ⋅ 10) dm = 18 dm *Menentukan volume pasir V = 1/3 ⋅ π ⋅ r² ⋅ t V = 1/3 ⋅ (22/7) ⋅ 14² ⋅ 18 V = 1/3 ⋅ (22/7) ⋅ 14 ⋅ 14 ⋅ 18 V = 1/3 ⋅ 22 ⋅ 2 ⋅ 14 ⋅ 18 V = 22 ⋅ 2 ⋅ 14 ⋅ 6 V = 44 ⋅ 14 ⋅ 6 V = 616 ⋅ 6 V = 3.696 Jadi volume pasir adalah 3.696 dm³. Semoga membantu ya..