
MATEMATIKA KELAS 5 SD
Presentation
•
Professional Development, Mathematics
•
5th Grade
•
Hard
Evy Haryanti
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5 Slides • 0 Questions
1
MATEMATIKA KELAS 5 SD
By Evy Haryanti, S.Pd
2
Kubus adalah bangun ruang yang semua sisinya sama panjang.
Titik sudut kubus A, B, C, D, E, F, G, dan H
Rusuk kubus AB, BC, CD, AD, AE, BF, CG, DH, EF, FG, GH, EH
Sisi kubus ABCD, EFGH, ABEF, CDHG, BCGF, ADHE
A. KUBUS
BANGUN RUANG
By Evy Haryanti, S.Pd
3
Banyaknya unsur-unsur pada kubus adalah sebagai berikut. :
By Evy Haryanti, S.Pd
No | Komponen | Banyak |
|---|---|---|
1. | Sisi | 6 |
2. | Rusuk | 12 |
3. | Titik Sudut | 8 |
4. | Diagonal ruang | 4 |
5. | Diagonal sisi/diagonal Bidang | 12 |
6. | Bidang Diagonal | 6 |
4
Lanjutan ...
Sesuai pokok pembahasan kita pada KD. 3.5 untuk matematika kelas 5 semester 2 yakni hanya sebatas menghitung atau menentukan volume kubus. Untuk menghitung volume kubus yakni : Luas Alas x tinggi karena Luas alasnya berbentuk persegi maka menjadi S x S sehingga menjadi S x S x t. Dan ternyata t kubus sama dengan panjang sisi kubus. Sehingga t kubus bisa di ganti dengan s. Maka rumus volume kubus menjadi S x S x S atau S 3.
By Evy Haryanti, S.Pd
5
Diketahui Kubus mempunyai panjang rusuk 8 cm. Hitunglah berapa volumenya?
Jawaban :
V = S × S × S
= 8 × 8 × 8
= 514 cm3
Contoh SOAL
RUMUS VOLUME KUBUS
By Evy Haryanti, S.Pd
MATEMATIKA KELAS 5 SD
By Evy Haryanti, S.Pd
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