Berikut ini adalah pertanyaan dari william854 pada mata pelajaran Matematika untuk jenjang Sekolah Menengah Pertama
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Jawaban dan Penjelasan
Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.
Penjelasan dengan langkah-langkah:
1. Diket
ED = AB = 20 cm
BC = 6 cm
AE = 8 cm
DC = 10 cm
Dit : L dan K
Jwb:
L = (ED+AC) x AE/2
= (20+26) x 8/2
= 46 x 4 =
= 184 cm²
K = AE + ED + AC + DC
= 20 + 8 + 26 + 10
= 28 + 36
= 64 cm
2
Diket : AD = AB = 5 cm
AF = EB = 3 cm
FE = 8 cm
CE = 4 cm
Dit: L dan K
L = (CD+AB) x BC/2
= (8+14) x4/2
= (22) x 2
= 44 cm²
K = AB + DC + BC + AD
= 14 + 8 + 5 + 5
= 22+10
=32 cm
3. K = 14+10+11+12
= 24 + 23
= 47
L = (12+14) x 10/2
= (26) x 5
= 130
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Last Update: Sun, 22 Aug 21